List of territorial disputes

Territorial disputes have occurred throughout history, over lands around the world. Bold indicates one claimant's full control; italics indicates one or more claimants' partial control.

Ongoing disputes between UN member/observer states

Africa

Territory	Claimants	Notes
Abyei, Heglig, Jodha, Kafia Kingi and Kaka	Sudan South Sudan	Both Sudan and South Sudan have claimed the area after the civil war that led to South Sudan's independence. Heglig was controlled by South Sudan in mid-April 2012 but retaken by Sudan. Abyei was taken in May 2012.
Banc du Geyser	Madagascar Comoros France	France claims the reef as a part of the Scattered Islands in the Indian Ocean, a district of the French Southern Territories.
Bassas da India, Europa Island and Juan de Nova Island	France Madagascar	De facto a part of the French overseas territory of the French Southern Territories.
Ceuta, Melilla, other plazas de soberanía	Spain Morocco	Ceuta and Melilla are administered by Spain as autonomous cities. An incident on Perejil Island happened in 2002, after which both countries agreed to return to status quo.
Chagos Archipelago	United Kingdom Mauritius Maldives	United Kingdom administers the archipelago as part of the British Indian Ocean Territory.
Doumeira Mountain, Ras Doumeira and Doumeira Island	Eritrea Djibouti	Basis of the Djiboutian–Eritrean border conflict of 2008. Disputed territory occupied by Eritrea following withdrawal of Qatari peacekeepers in June 2017. Alternatively transliterated as the Dumaira Mountains.
Glorioso Islands	France Madagascar Comoros	De facto a part of the French overseas territory of the French Southern Territories.
Hala'ib Triangle	Egypt Sudan	Previously under joint administration; Egypt now maintains full de facto control of the Hala'ib Triangle. The boundaries claimed by Egypt and Sudan both include the Hala'ib Triangle.
Ilemi Triangle	Kenya South Sudan	De facto controlled by Kenya. Ethiopian tribes have used and made raids in the land, but the Ethiopian government has never made a claim to it, agreeing it was Sudanese in 1902, 1907 and 1972 treaties.
KaNgwane and Ingwavuma	South Africa Eswatini	Eswatini claims territories which it states were confiscated during colonial times. The area claimed by Eswatini is the former bantustan of KaNgwane, which now forms the northern parts of Jozini and uMhlabuyalingana local municipalities in KwaZulu-Natal, and the southern part of Nkomazi, the southeastern part of Umjindi and the far eastern part of Albert Luthuli local municipalities in Mpumalanga.
Koualou village and surrounding area	Burkina Faso Benin	Burkina Faso and Benin retain a border dispute at this 68 km2 triangular area of land near the tripoint border with Togo. In a 2008 meeting, it was declared that the territory was a neutral zone, neither Burkinabé nor Beninese. According to the UN Refugee Agency in 2015, there were issues of children being born stateless in the area, however a Beninese civil registration office has taken control of registering births in the area.
Kpéaba village area (near Sipilou/Siquita)	Ivory Coast Guinea	The Guinean military occupied this village for 1 month from January to February 2013, before withdrawing in preparation of talks. In December 2016, Guinea soldiers and civilians attacked the village, killing 1 and wounding several others, before returning to their side of the border. According to the Guinean Minister of Defence, the Guinean army had been asked not to send any soldiers to this area and had no involvement in this incident.
Area near Logoba/Moyo District	South Sudan Uganda
Border near Chiengi, Lunchinda-Pweto Province	Zambia Democratic Republic of Congo	Dormant dispute.
Mayotte	France Comoros	Under the 2009 referendum, the population supported becoming an overseas department of France, and so became one on March 31, 2011.
Islands in Mbamba Bay, Lake Nyasa	Tanzania Malawi	Lundo Is. and Mbambo Is. are claimed as part of the lake, as Malawi claims to the shore based on 1890 Anglo-German treaty. See Tanzania–Malawi dispute.
Mbañie Island, Cocotiers and Congas Island	Gabon Equatorial Guinea	Contested islands in Corisco Bay, valuable for their oil.
Migingo Island vicinity, and, farther north, the vicinity of the islands of Lolwe, Oyasi, Remba, Ringiti and Sigulu, all a maritime rights dispute in Lake Victoria.	Kenya Uganda
Several islands in the Congo River	Republic of the Congo Democratic Republic of Congo
Several islands in the Ntem River	Cameroon Equatorial Guinea
Several villages near the Okpara River	Benin Nigeria
Orange River border line	Namibia South Africa	Namibia claims the border lies along the middle of the river, while South Africa claims it lies along the north bank.
The Rufunzo Valley and Sabanerwa	Rwanda Burundi
Rukwanzi Island and the Semliki River valley	Democratic Republic of Congo Uganda
Sindabezi Island	Zambia Zimbabwe
Socotra Archipelago	Yemen Somalia	Somalia, while not formally claiming the archipelago, asked for the United Nations to look into "the status" of the Socotran archipelago (i.e., whether or not it "should" belong to Yemen or rather Somalia).
Tromelin Island	France Mauritius	De facto a part of the French overseas territory of the French Southern Territories.
Wadi Halfa Salient	Egypt Sudan
Western Sahara	Morocco Polisario front	Territory controlled by Morocco (80%) since 1975 outside of the international law, and classified by the UN as a Non-Self-Governing Territory.

Asia

Territorial claims in the South China Sea

Map showing disputed territories of India

The final borders of the Nagorno-Karabakh conflict after the 1994 ceasefire was signed

Territory	Claimants	Notes
Ashmore and Cartier Islands	Australia Indonesia	Indonesia argues that the islands, known in Indonesian as Kepulauan Pasir, were first discovered and inhabited by local fishermen from Lesser Sunda Islands, which were then part of Dutch East Indies.
Aarsal, Deir El Aachayer, Kfar Qouq, Mazraat Deir al-Ashayer, Qaa, Qasr and Tuffah	Lebanon Syria
Shatt al-Arab	Iran Iraq
Abu Musa	Iran United Arab Emirates
Greater and Lesser Tunbs	Iran United Arab Emirates
Zirku Island, Sir Abu Nu’ayr	Iran United Arab Emirates
Nagorno-Karabakh region	Artsakh Armenia Azerbaijan	Internationally recognized as part of Azerbaijan, de facto controlled by the Nagorno-Karabakh supported by Armenia.
Bhutanese enclaves in Tibet, namely Cherkip Gompa, Dho, Dungmar, Gesur, Gezon, Itse Gompa, Khochar, Nyanri, Ringung, Sanmar, Tarchen, Doklam, and Zuthulphuk	China Bhutan
Azad Kashmir and Gilgit-Baltistan	Pakistan India	Administered by Pakistan and claimed by India. Part of the Kashmir conflict.
Hatay Province	Turkey Syria	Territory annexed by Turkey in 1939, ceded from Syria under the French Mandate of Syria; the annexation was never formally recognized by Syria after its independence.
Jammu and Kashmir and Ladakh	India Pakistan	Part of the Kashmir conflict. Both India and Pakistan claim the former independent princely state of Jammu and Kashmir, leading to the Indo-Pakistani war of 1947. A UN-mediated ceasefire put a halt to the conflict in January 1949. The UN resolution called for both the countries to demilitarise the region, following which a plebiscite would be held. However, no demilitarisation plan acceptable to both the countries could be agreed. The countries fought two further wars in 1965 and 1971. Following the latter war, the countries reached the Simla Agreement, agreeing on a Line of Control between their respective regions and committing to a peaceful resolution of the dispute through bilateral negotiations. An armed insurgency broke out in 1989 in the Indian administered part of Kashmir, demanding "independence". Pakistan is believed to provide arms and training to the militants.
Ko Kut	Thailand Cambodia
Various areas: Dak Jerman/Dak Duyt, Dak Dang/Dak Huyt, and the La Drang area.	Cambodia Vietnam
David Gareja monastery complex boundary dispute	Georgia Azerbaijan
Depsang Plains, Demchok sector, Chumar, Kaurik, Shipki La, Barahoti, Jadhang, Lapthal, Nelang, Pulam Sumda and Sang	China India	Disputed areas located between Aksai Chin and Nepal.
Doi Lang	Myanmar Thailand
Fasht Ad Dibal and Qit'at Jaradah	Bahrain Qatar	These were not included in the 2001 International Court of Justice judgement, as low-tide elevations.
Several areas in the Fergana Valley	Kyrgyzstan Tajikistan Uzbekistan	Kyrgyzstan: Barak is a tiny Kyrgyz village in the Fergana Valley region (where Kyrgyzstan, Tajikistan and Uzbekistan meet). In August 1999, the area around Barak was occupied by Uzbekistan. Barak became a de facto enclave only 1.5 km from the shifted main border. (Map) In August 2018 Kyrgyz and Uzbek authorities agreed to a land swap that would eliminate the exclave. The exchange process may take up to two years. Tajikistan: There are three Tajik exclaves, all of them in the Fergana Valley. One of them, the village of Sarvan, is surrounded by Uzbek territory, whereas the remaining two, the village of Vorukh and a small settlement near the Kyrgyz railway station of Kairagach, are each surrounded by Kyrgyz territory. Uzbekistan: There are four Uzbek exclaves, all inside Kyrgyz territory in the Fergana Valley. Two of them are the towns of Sokh and Shakhimardan and the other two the tiny territories of Chon-Qora and Jani-Ayil. There may be a fifth Uzbek exclave inside of Kyrgyzstan. Most of the border in the area is still not demarcated.
Isfara Valley	Kyrgyzstan Tajikistan
Ambalat	Indonesia Malaysia
24-mile stretch of border at pass of the Kabaw	India Myanmar	India's government acknowledges that its border with Myanmar is not yet demarcated, but does not consider there to be a "dispute".
Golan Heights	Israel Lebanon (only claims Shebaa Farms) Syria	Syrian territory captured by Israel in 1967 (the Six-Day War), and unilaterally annexed by Israel in 1981. In 2008, a plenary session of the United Nations General Assembly voted by 161–1 in favor of a motion on the "occupied Syrian Golan" that reaffirmed support for UN Resolution 497; United Nations, December 5, 2008). During the Syrian civil war period, Syrian Arab Republic had lost direct control of the Eastern Golan areas and retreated from cease-fire line with Israel (in favor of various rebel and Jihadist groups), though did regain the area in 2018.
Israel within the Green Line	Israel Palestine	See Israeli–Palestinian conflict
West Bank and East Jerusalem	Israel Civilian rule by Israel proper applied in East Jerusalem Military occupation has jurisdiction over all matters in Area C and security-related matters in Area B Palestine has jurisdiction over all matters in Area A and civil matters in Area B	See Israeli occupation of the West Bank
Gaza Strip	Palestine Israel	See Blockade of the Gaza Strip
Kalapani region, the smaller Susta River dispute and the smaller still Antudanda and Nawalparasi disputes	India Nepal	Kalapani is administered by India while Susta is administered by Nepal. The few remaining border disagreements with Nepal since delineation was announced 98% complete in 2019. See Territorial disputes of India and Nepal.
Artsvashen exclave of Gegharkunik province, de jure part of Armenia; Karki exclave of Nakhichevan Autonomous Republic, Yukhari Askipara and Barkhudarli, both exclaves of Qazakh Rayon de jure part of Azerbaijan; "Yaradullu" is controlled by Azerbaijan along with occupying the much larger de jure Armenian territory surrounding it.	Armenia Azerbaijan	Azerbaijan and Armenia have controlled these areas as part of the wider Nagorno-Karabakh conflict.
James Shoal	China Malaysia
Khuriya Muriya Islands	Oman Yemen
Korean Peninsula (Korea)	North Korea South Korea	The Democratic People's Republic of Korea administers North Korea, but Article 1 of the Constitution of North Korea reads: "The Democratic People's Republic of Korea is an independent socialist State representing the interests of all the Korean people." The Republic of Korea administers South Korea, but Article 3 of the Constitution of South Korea reads: "The territory of the Republic of Korea shall consist of the Korean peninsula and its adjacent islands."
Kula Kangri and mountainous areas to the west of this peak, plus the western Haa District of Bhutan	China Bhutan	Possibly also the ROC.
South Kuril Islands (Northern Territories)	Russia Japan
Dokdo/Takeshima	South Korea North Korea Japan	Incorporated into Korea in 1900 but claimed by Japan in 1905. And occupied by South Korea since 1952.
Certain islands in the Naf River	Bangladesh Myanmar
Noktundo	Russia South Korea	In 1990, the former Soviet Union and the Democratic People's Republic of Korea (North Korea) signed a border treaty which made the border run through the center of the Tumen river, leaving Noktundo in Russia. South Korea refused to acknowledge the treaty.
Part of the EEZ generated by the Natuna Islands	China Indonesia Republic of China (Taiwan)	The People's Republic of China claims the water off the Natuna Islands that fall under the nine-dash line claim are traditional Chinese fishing grounds. The Republic of China on Taiwan also claims the area.
Paracel Islands	China Republic of China (Taiwan) Vietnam	Entirely controlled by the PRC but claimed by Vietnam and the ROC.
"Pedra Branca"; several islets at the eastern entrance to the Singapore Strait	Singapore Malaysia	The International Court of Justice rendered its decision on 23 May 2008 that sovereignty over Pedra Branca belongs to Singapore; sovereignty over Middle Rocks belongs to Malaysia. It said sovereignty over South Ledge would remain disputed until the states could determine the ownership of the territorial waters in which it is located.
"Point 20"; a small area of land reclaimed from the sea by Singapore	Singapore Malaysia	Malaysia claims the land was reclaimed in its territorial waters.
O'Tangav area (claimed as part of Stung Treng Province)	Laos Cambodia	[2]
Part of Poipet commune	Thailand Cambodia
Prachinburi area	Thailand Cambodia
Area near Preah Vihear Temple (Khao Phra Wihan)	Thailand Cambodia	Temple complex awarded to Cambodia by an International Court of Justice ruling in 1962; "promontory" measuring 0.3 km2 immediately adjacent to temple awarded to Cambodia by ICJ ruling in 2013; both countries acknowledge continuing dispute over an additional 4.3 km2 immediately northwest of the 2013 ruling's area.
Phú Quốc island and Thổ Chu Islands area	Vietnam Cambodia	By the Khmer Rise Party these islands were lost to Vietnam by agreement in 1992 and 2005 by the government of the Cambodia People Party. However, many Cambodians still want to get the islands back. In 2018, The Khmer Rise Party has collected thumbprints on a petition to push the government to renegotiate the ownership of Phu Quoc (Koh Tral) island.
Qaruh and Umm al Maradim	Kuwait Saudi Arabia
Part of Sabah (North Borneo)	Malaysia Philippines	The Philippines retains a claim on the eastern part of Sabah (see North Borneo dispute) on the basis claimed by the Government of the Philippines that the territory is only leased by the former Sultanate of Sulu to British North Borneo Company, of which the Philippines argued that it should be the successor state of all Sulu past territories.
Saudi Arabia–United Arab Emirates border dispute	United Arab Emirates Saudi Arabia
Scarborough Shoal	China Philippines	Controlled by the PRC since the 2012 Scarborough Shoal standoff.
Senkaku Islands (Diaoyu Tai or Diaoyu Dao)	Japan China Republic of China (Taiwan)	Controlled by Japan but claimed by the PRC and ROC.
Trans-Karakoram Tracts	China India	Possibly also the ROC. Controlled by the PRC.
Siachen Glacier and Saltoro Ridge area	India Pakistan	Controlled by India after Operation Meghdoot in 1984.
Sir Creek	India Pakistan	A dispute over where in the estuary the line falls; only small areas of marsh land are disputed, but significant maritime territory is involved. It is divided mid-creek.
Arunachal Pradesh	India China Republic of China (Taiwan)	Controlled by India but claimed by the PRC and ROC who dispute the validity of the McMahon Line.
Ladakh	India Pakistan China	Controlled by India, but Pakistan claims sovereignty due to being part of Muslim populated state of Kashmir. China also claims some parts like Aksai chin and Karakoram tract(shagsam valley) as well as Demchok sector.
Spratly Islands	China Republic of China (Taiwan) (de facto) Vietnam Philippines (part) Malaysia (part) Brunei (part)	Each of the claimant countries except Brunei controls one or more of the individual islands.
Parts of Three Pagodas Pass	Myanmar Thailand
The islands of Ukatnyy, Zhestky and Malyy Zhemchuzhnyy	Russia Kazakhstan
Ungar-Too (Ungar-Tepa) mountain	Uzbekistan Kyrgyzstan
Vozrozhdeniya Island (now a peninsula)	Kazakhstan Uzbekistan
Limbang District	Malaysia Brunei	Limbang District was part of Brunei until it was forced to cede it to the Raj of Sarawak in 1890. Since then Brunei is divided territorially into two. It was claimed by Brunei in 1967 in order to reconnect the country. It forms the main part of the Brunei–Malaysia border#Disputes. Malaysia claimed to settle the issue in 2009, however this was disputed by Brunei.

Europe

Territory	Claimants	Notes
Russia–Ukraine border	Russia Ukraine	Since 2001 Russia delays an establishment of the border with Ukraine.
Tuzla Island and Strait of Kerch; Sarych		The conflict arose in 2003 when the Russian authorities started to build a dam towards the island. Ukraine then established a border garrison on the island for a closer surveillance. The reason for the conflict was the fact that Tuzla island's strategic location gave Ukraine full rights over the main channel in the Strait of Kerch and, thus, the access to the Sea of Azov. The conflict was based on the division of the Black Sea Fleet and a lease agreement of the Sevastopol Naval facilities.
Sea of Azov		("Mutual jurisdiction") On 25 November 2018 Russia blocked three Ukrainian Navy vessels from entering Sea of Azov.
Crimea		In 2014, Russian forces occupied and annexed the Crimean peninsula, seizing it from Ukrainian territories. Russian claims to Crimea are not internationally recognized. The United Nations, through General Assembly Resolution 68/262, affirmed that Crimea was part of Ukraine and that Russia's annexation is invalid. Several nations imposed international sanctions on Russia in reaction to its action.
Aegean dispute, Imia/Kardak	Greece Turkey	Broad number of delimitation disputes about a.o. national airspace, territorial waters and exclusive economic zones. Includes Imia/Kardak dispute.
Mont Blanc summit dispute	France Italy	France asserts that the principal peaks on the Mont Blanc massif—Dôme du Goûter, Punta Helbronner, and Mont Blanc lie in French territory, while Italy asserts that the summits are shared.
Carlingford Lough and Lough Foyle boundary dispute	Ireland United Kingdom	Lough Foyle divides County Donegal, Republic of Ireland, and County Londonderry, Northern Ireland. Carlingford Lough divides County Louth, Republic of Ireland, and County Down, Northern Ireland.
Gibraltar	United Kingdom Spain	Dispute over the interpretation of the Treaty of Utrecht and the location of the border.
Rockall Island	Ireland United Kingdom Denmark Iceland	Disputed uninhabited island in the North Atlantic Ocean.
Dollart bay	Germany Netherlands	The exact course of the border through this bay is disputed, yet the countries have agreed to disagree by signing a treaty in 1960.
Lake Constance	Germany Austria Switzerland	Switzerland holds the view that the border runs through the middle of the lake. Austria is of the opinion that the contentious area belongs to all the states on its banks. Germany holds an ambiguous opinion.
Olivenza and Vila Real (including the municipality of Táliga)	Spain Portugal	In 1801, during the War of the Oranges, Spain, with French military support, occupied the territory of Olivenza (in Portuguese Olivença). During the Treaty of Vienna (1815), the signatory powers (including Spain) agreed with the Portuguese arguments concerning its claim on Olivença but Spain never fulfilled its duty of giving the city of Olivença and its territory back to Portugal.
Croatia-Serbia border dispute	Croatia Serbia	Limited areas along the Danube Parts of Osijek-Baranja and Vukovar-Syrmia Counties and West and South Bačka Districts
Island of Šarengrad
Island of Vukovar
Croatia-Slovenia border disputes	Slovenia Croatia
Gulf of Piran		An agreement was signed (and ratified by Croatia's parliament on 20 November 2009) to pursue binding arbitration to both the land and maritime portions of this continuing dispute. In 2015 collusion between the Slovenian judge on the arbitration panel and a representative from the Slovenian government was uncovered. The Croatian Sabor voted to withdraw from the arbitration, citing allegations of significant breaches of arbitration rules by Slovenia as the reason. Despite this the arbitration tribunal continued its work, issuing a ruling in 2017.
Military complex near Sveta Gera		The complex is in the area of Žumberak/Gorjanci
Prevlaka	Croatia Montenegro
Sastavci	Serbia Bosnia and Herzegovina
Tip of the Klek peninsula, and the islands of Veliki Školj and Mali Školj (near Neum)	Croatia Bosnia and Herzegovina

North America

Central America and the West Indies

Territory	Claimants	Notes
Aves Island	Venezuela Dominica	Dominica abandoned the claim to the island in 2007, but continues to claim the adjacent seas, as do some neighboring states.
Bajo Nuevo Bank	Colombia Nicaragua Jamaica United States	Honduras has recognized the sovereignty of Colombia; other claimants have not. On November 19, 2012, the International Court of Justice (ICJ) ruled that Colombia has sovereignty over Bajo Nuevo.
Southern half of Belize	Belize Guatemala	Guatemala formerly claimed all of Belize.
Conejo Island	Honduras El Salvador
Navassa Island	United States Haiti
Sapodilla Cay	Belize Guatemala Honduras	Guatemala formerly claimed all of Belize.
Serranilla Bank	Colombia Honduras Nicaragua United States	Jamaica has recognized the sovereignty of Colombia; other claimants have not. On November 19, 2012, the International Court of Justice (ICJ) ruled that Colombia has sovereignty over Serranilla.
Oyster Pond	Netherlands France	Claimed by both The Kingdom of the Netherlands (on behalf of Sint Maarten) and France.

Northern America and Mexico

Territory	Claimants	Notes
Hans Island	Canada Denmark (Greenland)	Claimed by both Canada and the Kingdom of Denmark (on behalf of Greenland).

Territory disputed between Canada and the United States

Main article: List of areas disputed by Canada and the United States

Territory	Canadian claimant	U.S. claimant
Machias Seal Island	New Brunswick	Maine
North Rock	New Brunswick	Maine
Strait of Juan de Fuca	British Columbia	Washington
Dixon Entrance	British Columbia	Alaska
Beaufort Sea	Northwest Territories, Yukon	Alaska
Northwest Passage and some other Arctic waters	Canadian territorial waters	U.S. claims navigation rights

Oceania

Territory	Claimants	Notes
Matthew and Hunter Islands	Vanuatu France
Minerva Reefs	Tonga Fiji	Fiji claims that the entire reef is submerged at high tide, negating use of Minerva as a basis for any sovereignty or maritime EEZ claim by Tonga under the rules of UNCLOS.
Swains Island	United States Tokelau	Tokelau's claim is unsupported by New Zealand, of whom Tokelau is a dependency. New Zealand formally recognises the USA's sovereignty over Swains Island.
Wake Island	United States Marshall Islands

South America

Territory	Claimants	Notes
Guayana Esequiba (Guyana west of the Essequibo River) and Ankoko Island/Isla de Anacoco	Guyana Venezuela	Venezuela and Guyana have overlapping maritime area claims as well. Barbados and Guyana have since signed joint cooperation agreement over this area.
Arroyo de la Invernada or Rincón de Artigas and Vila Albornoz	Brazil Uruguay	Dispute in the 237 km2 (92 sq mi) Invernada River region near Masoller, over which tributary represents the legitimate source of the Quaraí River/Cuareim River (the UN does not officially recognize the claim)
Falkland Islands, South Georgia and the South Sandwich Islands	United Kingdom Argentina	Including Shag Rocks. See Falkland Islands sovereignty dispute, South Georgia and South Sandwich Islands sovereignty dispute
French Guiana west of the Marouini River	France Suriname
Tigri Area east of the Upper Courantyne River	Guyana Suriname	The Tigri Area (Dutch: Tigri-gebied) is a wooded area that has been disputed since around 1840 by Suriname and Guyana. It involves the area between the Upper Corentyne River (also called New River), the Coeroeni River and the Kutari River. This triangular area is in Guyana known as the New River Triangle. In 1969 the conflict ran high on and since then the Tigri Area is controlled by Guyana and claimed by Suriname. In 1971 both governments in Trinidad agreed that they continue talks over the border issue and withdraw their military forces from the disputed Triangle. Guyana has never held upon this agreement.
Isla Brasilera/Ilha Brasileira	Brazil Uruguay	Uruguayan officials claim that the island falls under their Artigas Department (the UN does not officially recognize the claim)
Isla Suárez/Ilha de Guajará-mirim	Bolivia Brazil	An island in the river that serves as a border between Bolivia and Brazil, alongside others 80 island not assigned to any country, the island is closer to Bolivia but despite this, is economically dependent of the Brazilian city of Guajará-Mirim, both countries signed in 1958 a treaty that keep the island in a status quo
Gulf of Venezuela and Los Monjes Archipelago surrounding waters	Colombia Venezuela	Dispute regarding the undefined sea border between both countries.
Southern Patagonian Ice Field between Monte Fitz Roy and Cerro Murallón	Argentina Chile	Parts of the border still officially undefined.

Ongoing disputes involving states outside the UN

See also: List of states with limited recognition

Territory	Claimants	Notes
Abkhazia	Republic of Abkhazia Georgia	Main article: Georgian–Abkhazian conflict
Village of Aibga and surrounding area	Republic of Abkhazia Russia
Bakassi	Cameroon Ambazonia Nigeria (elements)	While Nigeria transferred Bakassi to Cameroon in 2008, elements within Nigeria have declared the territorial cession unconstitutional
Eastern part of Bhutan	Bhutan People's Republic of China
North Cyprus	Turkish Republic of Northern Cyprus Cyprus	Northern Cyprus (a state with limited recognition) controls and administers the northern part of the island. Republic of Cyprus claims the whole island.
Macclesfield Bank	People's Republic of China Republic of China
Mainland China, Hainan, and other islands controlled by the PRC.	People's Republic of China Republic of China	Main article: Cross-Strait relations
Moldovan-controlled area of Dubăsari district	Moldova Pridnestrovian Moldavian Republic
Kokkina/Erenköy exclave	Turkish Republic of Northern Cyprus Cyprus	Northern Cyprus controls and administers Kokkina, an area separated from the rest of the main land on Northern Cyprus via the land controlled by the Republic of Cyprus.
Heixiazi / Bolshoy Ussuriysky Island (eastern half)	Russia People's Republic of China	Generally held to have been resolved in October 2004 by the Complementary Agreement between the People's Republic of China and the Russian Federation on the Eastern Section of the China-Russia Boundary, but the ROC does not recognise any border settlements entered into by the PRC.
Heixiazi / Bolshoy Ussuriysky Island (western half)	People's Republic of China Republic of China	Main article: Cross-Strait relations Remnant portion of the island formerly claimed entirely by both the PRC and ROC, now part of the wider PRC-ROC dispute.
Hong Kong	People's Republic of China Republic of China	It is unclear whether the ROC actually claims Hong Kong. Former President Lee Teng-hui claimed that Hong Kong should have been returned to the ROC instead of the PRC because the ROC government had the original manuscript of the Treaty of Nanking. However, no president since Lee has made such claim. The ROC has never governed Hong Kong, and its constitution does not include Hong Kong as its territory.
Northern part of Kachin State	Myanmar People's Republic of China	North part west of the Gaoligong Mountains (高黎貢山) in western Yunnan, China, and the Division of Sagaing: Jiangxinpo (江心坡) and Nankan (南坎).
106.40 square kilometres of formerly Chinese territory in Kazakhstan	Kazakhstan People's Republic of China
Kosovo	Republic of Kosovo Serbia	Kosovo is the subject of a territorial dispute between the Republic of Serbia and the self-proclaimed Republic of Kosovo. The latter declared independence on 17 February 2008, while Serbia claims it as part of its own sovereign territory. Its independence is recognized by 97 UN member states.
Kutuzov Island	Russia People's Republic of China
Republic of Somaliland	Somaliland Somalia
Part of the Ryanggang Province	North Korea South Korea People's Republic of China
Part of the Rasŏn administrative division	North Korea South Korea People's Republic of China
Sixty-Four Villages East of the Heilongjiang River	Russia People's Republic of China
Southern Cameroons	Cameroon Ambazonia	Main article: Anglophone Crisis
South Ossetia	Republic of South Ossetia Georgia	Main article: Georgian–Ossetian conflict
'Border' checkpoint near Strovilia	United Kingdom Turkish Republic of Northern Cyprus	Northern Cyprus controls and administers the border checkpoint near Strovilia. UK's claim in regard to its Sovereign Base Areas Technically, of course, this also involves Cyprus; the checkpoint is partially on UN-administered land, and Cyprus claims all of the island. (See: Europe)
Taiwan, Penghu, Kinmen, Matsu Islands, Pratas Island and the Vereker Banks	Republic of China People's Republic of China	The government of the People's Republic of China claims the entire island of Taiwan, as well as a number of minor islands, such as Penghu, Kinmen, and Matsu, that are controlled by the Republic of China). See also:Anti-Secession Law, Legal status of Taiwan.
Transnistria (including Bendery)	Pridnestrovian Moldavian Republic Moldova
Varnita and Copanca	Moldova Pridnestrovian Moldavian Republic
Western Sahara	Morocco Sahrawi Arab Democratic Republic	The United Nations keeps the Western Sahara in its list of Non-Self-Governing Territories and considers the sovereignty issue as unresolved pending a final solution. To that end, the UN sent a mission in the territory to oversee a referendum on self-determination in 1991, but it never happened. Administration was relinquished by Spain in 1976.

Ongoing disputes within a state by internal entities

Territory	Country	Internal claimants	Notes
Several islands in the Paraná River	Argentina	Entre Ríos Santa Fe	Islands: Isla de los Mástiles/La Carlota, Isla Ingeniero Sabino Corsi Norte/Sur and Isla General Juan Pistarini.
Put Point	Mexico	Campeche Quintana Roo Yucatán	The three states claim three different borders between them.
Mount Kerinci	Indonesia	Jambi West Sumatra
Belgaum	India	Karnataka Maharashtra
As much as a 2,821 km2-wide area in and around the Ibiapaba mountain range	Brazil	Ceará Piauí	This dispute originated in an 1880 imperial decree. In 1920 a solution to the dispute was arbitrated but in practice it was never carried out. In 2008 there were new attempted negotiations, but they broke down in 2011, and as of 2013 it is pending either a supreme court decision, a referendum or a possible mutual agreement.
Fernando de Noronha	Brazil	Pernambuco Rio Grande do Norte	The dispute dates from the colonial period.
Disputed territories of Northern Iraq	Iraq	Iraq proper Iraqi Kurdistan	Iraq's autonomous region of Iraqi Kurdistan claims and controls parts of the governorates of Nineveh, Arbil, Kirkuk and Diyala.
Lubicon traditional territory between the Peace River and Athabasca River and north of Lesser Slave Lake	Canada	Alberta Lubicon Lake Indian Nation (Cree)	Northern Alberta
Southern edge of Labrador	Canada	Newfoundland and Labrador Quebec	This was formerly an international dispute between Canada, which includes Quebec, and the Dominion of Newfoundland, then an independent country. Quebec has never accepted the border.
Songling District and Jiagedaqi District	China	Inner Mongolia Heilongjiang	The two districts are owned by Inner Mongolia, but Jiagedaqi District(urban) was established as capital of Daxinganling Prefecture, Heilongjiang Province, resulting it and adjacent Songling District under effective control of Heilongjiang Province. Hulunbuir City(Prefecture), Inner Mongolia actively disputes these two districts, as they formerly belongs to Oroqen Autonomous Banner, Hulunbuir.
Belén de Bajirá	Colombia	Antioquia  Chocó	Disputed since 2000, both Departments of Antioquia and Chocó have claimed the corregimiento as part of their own respective municipalities. In 2014, amidst a rise of tensions between the claimants, the National Government under the Geographic Institute Agustín Codazzi formally started a process to find a solution for the dispute.
A wide section from the 35th parallel north to one mile south.	United States	Tennessee Georgia	Due to an inaccurate measurement in 1818, Georgia claims the correct 35th latitude north, and does so in a chance of a drought, it would have access to the Tennessee River. See Tennessee-Georgia water dispute.
California-Oregon border, 51,000 acres straddling the 42nd parallel north	United States	California Oregon	Location errors in an 1868–1870 survey to demarcate the Oregon-California border created a dispute between Oregon and California, which upon statehood had established the 42nd parallel north as its de jure border, based on the 1819 Adams–Onís Treaty between the U.S. and Spain. The dispute continues to this day, as Oregon has about 31,000 acres of California, while California has about 20,000 acres of Oregon. The border should follow the 42nd parallel straight west from the 120th meridian west to the Pacific. Instead it zigzags, and only one of the many surveyor's markers put down in 1868 actually is on the 42nd parallel.
New Mexico-Texas Panhandle border	United States	Texas New Mexico	The border was defined as the 103rd meridian but an 1859 survey marked it too far west, mistakenly putting present-day towns of Farwell, Texline, and a part of Glenrio in Texas. New Mexico's draft constitution used the 103rd meridian as intended. The New Mexico Senate passed a bill to file a lawsuit to recover the strip, but it has not become law. The land and towns are administered by Texas.
Parts of Fort Bonifacio	Philippines	Makati Taguig Pateros	Disputed since 1983. Taguig claims more than 729 hectares of land in Fort Bonifacio, an area administered by Makati. On August 5, 2013, the Court of Appeals Sixth Division ruled that Makati has legal jurisdiction over the area, thus invalidating Taguig's claim. Taguig has not abandoned its claims and will petition the Court of Appeals to have the decision revoked. Pateros also claims the area and has filed a petition before the Taguig Regional Court Branch 271 in 2012 concerning its claim. Pateros reiterated its claims in 2013 following the decision of the Court of Appeals awarding Makati jurisdiction over the area.
Fiat Auto Poland factory and nearest areas	Poland	Tychy Bieruń	The territory has historically been a part of the town of Bieruń. In years 1975–1991 Bieruń was a part of Tychy. The Fiat Auto Poland (formerly FSM factory) remaining in Tychy was a condition of Bieruń's separation. In the 90s, Bieruń has regained the Homera osiedle which was part of the disputed area.
Prigorodny District, North Ossetia–Alania	Russia	North Ossetia–Alania Ingushetia	Main article: East Prigorodny Conflict
Phuldungsei	India	Mizoram Tripura

Antarctica

Further information: Territorial claims in Antarctica

The Antarctic Treaty System, formed on 1 December 1959 and entered into force on 23 June 1961, establishes the legal framework for the management of Antarctica and provides administration for the continent, which is carried out through consultative member meetings. It prevents new territorial claims of all signatories (except the U.S. and Russia) for as long as the treaty is in force. However, it is not a final settlement; parties can choose to withdraw from the System at any time. Furthermore, only a minority of states have signed it, and it is not formally sanctioned by the United Nations. Thus, Antarctica remains the only part of the planet any (non-signatory) state can still lay claim to as terra nullius (on the grounds of it not having been part of any existing state's legal and effective territory).

Territory	Claimants	Antarctic territory
Area between 25°W and 53°W	United Kingdom Argentina	British Antarctic Territory Argentine Antarctica
Area between 53°W and 74°W	United Kingdom Argentina Chile	British Antarctic Territory Argentine Antarctica Antártica Chilena Province
Area between 74°W and 80°W	United Kingdom Chile	British Antarctic Territory Antártica Chilena Province

Historical disputes, subsequently settled

Africa

Territory	Former claimants	Dispute started	Dispute settled	Notes
Agacher Strip	Burkina Faso Mali	c. 1960	1986	Following repeated military clashes between Burkina Faso and Mali over the Agacher Strip, the International Court of Justice resolved the conflict in 1986 by dividing the disputed area approximately equally between the two countries.
Aouzou Strip	Chad Libya	c. 1973	1994	In 1994 the International Court of Justice decision found in favour of Chad sovereignty over the Aouzou strip, and ended the Libyan claim.
Badme	Ethiopia Eritrea	1993	2018	Basis of the Eritrean-Ethiopian War which began in 1998. The territory was handed over to Eritrea following a joint statement at the Eritrea–Ethiopia summit in 2018.
Bakassi	Cameroon Nigeria	1913	2006	This area was handed over by Nigeria to Cameroon following an International Court of Justice ruling and the Greentree Agreement.
Bure	Ethiopia Eritrea	2002	2008	Eritrea has accepted the decision and no longer disputes this location.
Burkina Faso–Niger border dispute	Burkina Faso Niger	c. 1960	2013	The International Court of Justice redefined the border between Burkina Faso and Niger in 2013. In 2015 the ruling was implemented by exchanging 18 towns between the two countries.
Part of the Kahemba region	Angola Democratic Republic of Congo		2007	Following a March 2007 report on the disputed area on the joint border in the Kahemba region, the Congolese interior minister admitted the territory was in fact part of Angola and agreed to send a technical team to demarcate the border along colonial era lines. The countries agreed to end the dispute in July 2007.
Lété Island and nearby islands in the Niger River	Niger Benin	c. 1960	2005	In 2005 the International Court of Justice awarded Lété and 15 of the other disputed islands to Niger, and the remaining nine islands to Benin.
Sedudu	Botswana Namibia	1890	1999	In 1999 the International Court of Justice awarded Sedudu to Botswana, ending the Namibian claim.
Tsorona-Zalambessa	Ethiopia Eritrea	2002	2008	Eritrea has accepted the decision and no longer disputes this location.
Yenga (border hamlet), and left bank of the Makona and Moa rivers	Sierra Leone Guinea	c. 1995	2013	The two heads of state settled this dispute in 2013.

Americas

Territory	Former claimants	Dispute started	Dispute settled	Notes
Alaska boundary dispute	United States Canada	1821	1903	Disputed between the United States and Canada (then a British Dominion with its foreign affairs controlled from London). The dispute had been going on between the Russian and British Empires since 1821, and was inherited by the United States as a consequence of the Alaska Purchase in 1867. It was resolved by arbitration in 1903 with a delegation that included 3 Americans, 2 Canadians, and 1 British delegate that became the swing vote. By a 4 to 2 vote, the final resolution favored the American position. Canada did not get an outlet from the Yukon gold fields to the sea. The disappointment and anger in Canada was directed less at the United States, and more at the British government for betraying Canadian interests in pursuit of a friendly relationship between Britain and the United States.
Aroostook War	United States British North America	1838	1842	Disputed border between the state of Maine and the provinces of New Brunswick and Lower Canada.
Atacama border dispute	Bolivia Chile	1879	1904
Guaíra Falls	Brazil Paraguay	1872	1980	The disputed islands were submerged by the reservoir of Itaipú.
Chamizal dispute	United States Mexico	1898	1963	Disputed border within the El Paso/Ciudad Juárez region.
Cresap's War	Maryland Pennsylvania	1730	1767	Dispute over the northern border of the Province of Maryland and southern border of Province of Pennsylvania, particularly west of the Susquehanna River. Settled by the drawing of the Mason–Dixon line.
New Hampshire Grants/Vermont	New Hampshire New York Vermont	1749	1791	In 1664 King Charles II decided the west bank of the Connecticut River was the eastern boundary of New York, so that that province included all of what later became the state of Vermont. During 1749–64, Governor Benning Wentworth of New Hampshire issued well over a hundred "grants", offering lands for sale west of the river in what would become Vermont. In 1764, King George III attempted to end the dispute by ruling that the region belonged to New York. But New York would not recognize the property claims of numerous settlers whose claims were based on Wentworth's grants, so local governments and militias resisted New York's rule. In 1777, the politicians of the disputed territory declared it independent of New York, Britain, and New Hampshire, calling it the State of Vermont. Vermont existed for 14 years as an unrecognized de facto independent country, considered by New York to be a district in rebellion. Negotiations between New York and Vermont in 1790 removed impediments to Vermont's admission to the Union in 1791.
Delaware Wedge	Delaware Maryland Pennsylvania	1750s	1921	A gore created when the borders of the colonies Maryland, Delaware, and Pennsylvania were defined. Dispute over the borders between the three colonies dates to the foundation of each during the middle 17th century. A series of defined lines and arcs were laid out by statute to settle the disputes, the most famous of which was the Mason–Dixon line. The Wedge was left out of all three colonies (and later U.S. states), and remained a matter of dispute until it was formally resolved to assign the Wedge to Delaware in 1921.
Eastern shore of the Narragansett Bay	Colony of Rhode Island and Providence Plantations Plymouth Colony (to 1691) Province of Massachusetts Bay (from 1691)	1636	1898	Claimed by both Rhode Island and Plymouth Colony. Plymouth's claim was inherited by the newly created Province of Massachusetts Bay when the latter was created in 1691 from the merger of earlier Massachusetts Bay and Plymouth Colonies. A royal decree in 1746 assigned the land to Rhode Island, but Massachusetts continued to press its claim until 1898.
New York – New Jersey Line War	New York New Jersey	1701	1756	Dispute over the southern border of Province of New York and the northern border of the Province of New Jersey. Raiding parties kidnapped and burned crops.
Isla Martín García	Argentina Uruguay	1879	1973	After the Conquest of the Desert was formally launched in 1879, many indigenous leaders captured were confined there. The island was transferred to Argentine Navy jurisdiction in 1886. The island's distance from the Uruguayan territory is less than two miles, and its jurisdictional status was formally established by the Treaty of Río de la Plata between Uruguay and Argentina on November 19, 1973.
Cordillera del Cóndor-Cenepa River	Peru Ecuador	1828	1998
Cordillera of the Andes Boundary Case	Argentina Chile	1881	1902	After the signature of the Boundary treaty of 1881 between Chile and Argentina differing interpretations on whether the highest Andean peaks (favouring Argentina) or the continental divide (favouring Chile) was to be considered the boundary.
Puna de Atacama dispute	Argentina Chile	1889	1898
Clipperton Island	Mexico France	1897	1931	Disputed between France and Mexico. On January 28, 1931, King Victor Emanuel, selected as a neutral arbitrator, finally declared Clipperton to be a French possession, and it has remained relatively undisputed ever since.
Beagle conflict	Argentina Chile	1898	1982
Río Encuentro-Alto Palena dispute	Argentina Chile	1913	1966
Laguna del Desierto	Argentina Chile	1949	1994
Missouri	United States Confederate States	1861	1865	After the Missouri secession, the State of Missouri was claimed by both the United States and Confederate States until the defeat of the Confederacy in the American Civil War
Border of New Hampshire and Canada	United States United Kingdom	1783	1842	Ill-defined terms of the Treaty of Paris at the end of the Revolutionary War left the boundary of the state of New Hampshire and Canada in doubt. The lack of a precise definition of the "northwesternmost head of the Connecticut River" as defined by the Treaty of Paris left the land that is now the town of Pittsburg, New Hampshire within the conflicting jurisdiction of both the United States and Great Britain. In 1832 residents of the area established the short-lived Republic of Indian Stream in the area; the minuscule population of the putative nation never exceeded about 300. The boundary was finally settled definitively by the Webster–Ashburton Treaty of 1842.
Sverdrup Islands	Norway United Kingdom	1928	1930	In 1928 Norway asserted its claim of sovereignty over the Sverdrup Islands. The islands are named after Norwegian explorer Otto Sverdrup, who explored and mapped them from 1898 to 1902 with the vessel Fram, although some were previously inhabited by Inuit people. Sverdrup claimed the islands for Norway, but the Norwegian government did not pursue the claim until 1928. At that point, the Norwegian government raised the claim, primarily to use the islands as bargaining chips in negotiations with the United Kingdom over the status of the Arctic island Jan Mayen and the Antarctic Bouvet Island. On November 11, 1930, Norway ceded the Sverdrup Islands to Canada, in exchange for British recognition of Norway's sovereignty over Jan Mayen.
San Andrés and Providencia	Colombia Nicaragua	1928	2012
Tacna–Arica compromise	Chile Peru	1883	1929
Pacific Ocean Sea border	Chile Peru	1985	2014
Erik the Red's Land	Denmark Norway	1931	1933
Isla Portillos	Costa Rica Nicaragua	2010	2018	On 2 Feb 2018, the ICJ rendered a decision in a border dispute between Nicaragua and Costa Rica regarding Isla Portillos. Nicaragua was left with just the Laguna Los Portillos and its short strip of beach. The court also decided that the sea just outside of the lagoon would be Costa Rican waters. The ICJ concluded that the whole beach is Costa Rican except for the part directly between the lagoon and the Caribbean Sea – now a tiny enclave of Nicaraguan territory separated from the rest of the country.

Antarctica

Territory	Former Claimants	Dispute Started	Dispute Settled	Notes
Bouvet Island	Norway United Kingdom	1927	1929	The United Kingdom claimed this Antarctic island as Lindsay/Liverpool Island based on sightings going back to 1808, but Norway landed there in 1927. In November 1929, Britain renounced its claim to the island.

Asia

Territory	Former claimants	Dispute started	Dispute settled	Notes
Tiran and Sanafir Islands	Saudi Arabia Egypt	1906	2017	These islands were transferred to Saudi Arabia in 2017.
Arabi Island and Farsi Island	Iran Saudi Arabia		1968	These islands were disputed between Iran and Saudi Arabia. In 1968 Iran and Saudi Arabia had an agreement that Farsi island be given to Iran and Arabi island be given to Saudi Arabia.
Bay of Bengal Maritime Boundary between Bangladesh and India	India Bangladesh	1974	2014	India and Bangladesh had engaged in eight rounds of bilateral negotiations starting 1974 but it remained inconclusive until 2009. In October 2009, Bangladesh served India with notice of arbitration proceedings under the UNCLOS . The Arbitration Tribunal delivered the ruling on 7 July 2014 and settled the dispute.
Indo-Bangladesh enclaves, adverse possessions and undemarcated land boundaries	India Bangladesh	1947	2015	Following Partition of Bengal (1947), the issues of adverse possessions, enclaves and unmarked boundary arose. Inside the main part of Bangladesh, there were 111 Indian enclaves (17,160.63 acres), while inside the main part of India, there were 51 Bangladeshi enclaves (7,110.02 acres). In 1974 Bangladesh approved a proposed treaty, Land Boundary Agreement, to exchange all enclaves within each other's territories, but India did not ratify it. Another agreement was agreed upon in 2011 to exchange enclaves and adverse possessions. With respect to adverse possessions, India received 2,777.038 acres of land and transferred 2,267.682 acres to Bangladesh. India ratified the agreement by constitutional amendment in May 2015.
Muhurichar river island	India Bangladesh	1974	2011	Historically controlled by India but claimed by Bangladesh, disputed from approximately 1974. An agreement was reached on the demarcation of the border in the area in 2011, and in 2019 the Indian government confirmed that it no longer had any outstanding boundary dispute with Bangladesh.
South Talpatti/New Moore/Purbasha Island	India Bangladesh	c. 1975	2010	This former dispute over a small island never more than two meters above sea level was contested from the island's appearance in the 1970s to its disappearance, likely due to climate change, in the first decade of the 2000s. Though land disputes no longer exist, the maritime boundary was not settled until 2014.
Sakhalin Island	Russian Empire Empire of Japan	1845	1875	Japan unilaterally proclaimed sovereignty over the whole island in 1845, but its claims were ignored by the Russian Empire. The 1855 Treaty of Shimoda acknowledged that both Russia and Japan had joint rights of occupation to Sakhalin, without setting a definite territorial demarcation. As the island became settled in the 1860s and 1870s, this ambiguity led to increasing friction between settlers. Attempts by the Tokugawa shogunate to purchase the entire island from the Russian Empire failed, and the new Meiji government was unable to negotiate a partition of the island into separate territories. In 1875 by the Treaty of Saint Petersburg, Japan agreed to give up its claims on Sakhalin in exchange for undisputed ownership of the Kuril Islands. In 1905 under the Treaty of Portsmouth Japan gained Sakhalin to the 60th parallel, but lost it again in 1945.
Pamir Mountains	Tajikistan China	1877	2011	The Tajik Government ceded 1,158 square kilometres (447 sq mi) to the PRC, while PRC relinquished its 28,000 square miles (73,000 km2) claim over the remaining territory with final ratification of a treaty in January 2011.
Palmas Island (modern-day Miangas Island)	Philippine Islands Dutch East Indies	1906	1928	Dispute between the United States and the Netherlands over the Palmas island located south of the Philippines, which was then American territory. The Netherlands believed that the islands were part of the Dutch East Indies. The territorial dispute was solved through the Island of Palmas case which decided that the Palmas Island belongs to the Netherlands. Palmas Island, now Miangas Island, is a part of modern Indonesia.
Yalu River (disputed sovereignty of certain islands)	China North Korea South Korea	1949	2005	The allocation to North Korea of all of the large islands in the lower Yalu River, including Pidan and Sindo at the mouth, is now clear. The river's maritime rights remain shared between the two nations.
Shaksgam Valley	Pakistan (still claimed by: India China)	1947	1963	Pakistan relinquished its claim to PR China; India did not.
Sinai Peninsula	Israel Egypt	1967	1982	During the Six-Day War Israel claimed Sinai. It was returned in 1982 under the terms of the 1979 Egypt–Israel Peace Treaty.
Taba	Israel Egypt	1979	1989	When Egypt and Israel were negotiating the exact position of the border in preparation for the 1979 peace treaty, Israel claimed that Taba had been on the Ottoman side of a border agreed between the Ottomans and British Egypt in 1906 and had, therefore, been in error in its two previous agreements. Although most of Sinai was returned to Egypt in 1982, Taba was the last portion to be returned. The issue was submitted to an international commission. In 1988, the commission ruled in Egypt's favour, and Israel returned Taba to Egypt in 1989.
Turtle Islands	Philippine Islands North Borneo		1930	Dispute between the United States and the United Kingdom over the Turtle Islands located south of the Philippines, which was then American territory. In a 1930 treaty the United Kingdom acknowledge American sovereignty over the islands and was agreed upon that the British would remain administering the island until the United States express interest to take over control over the islands after a one-year notice. When the Philippines gained full independence from the United States in 1946, the Philippines invoked the treaty and the British turned over the islands to the Philippines in 1947.
West Bank, including East Jerusalem	Israel Jordan	1967	1988	During the Six-Day War Israel conquered these territories from Jordan. Jordan later renounced the claim on the territory, supporting instead its inclusion in a future Palestine.
Ligitan and Sipadan	Malaysia Indonesia	1969	2002	The 2002 International Court of Justice ruling awarded both islands to Malaysia, but left unsettled the maritime boundary immediately southwest and west of the islands between Malaysia and Indonesia.
Hawar Islands	Qatar Bahrain	1971	2001	Formerly disputed between Qatar and Bahrain, it was settled by the International Court of Justice (ICJ) in The Hague. In the June 2001 decision, Bahrain kept the Hawar Islands and Qit'at Jaradah but dropped claims to Janan Island and Zubarah on mainland Qatar, while Qatar retained significant maritime areas and their resources. The agreement has furthered the goal of definitively establishing the border with Saudi Arabia and Saudi-led mediation efforts continue.
Pulau Batek/Fatu Sinai (de)	Indonesia East Timor	2002	2004	Ceded by Timor-Leste to Indonesia in August 2004.
Saudi Arabia–Yemen border demarcation dispute	Saudi Arabia Yemen	1934	2000	Settled by the Treaty of Jeddah (2000).

Europe

Territory	Former claimants	Dispute started	Dispute settled	Notes
Baltic Sea	Poland Denmark	1978	2018	Poland has decided to cede to Denmark 80 percent of disputed territory
Bregovo	Bulgaria Kingdom of Serbia	1885	1886	Bulgaria and Serbia briefly had a war over a small border village called Bregovo and this has been the recognized border ever since then.
Åland Islands	Finland Sweden	1917	1920	Sweden and Finland argued over the control of the Åland Islands (located between Sweden and Finland). The Åland movement (Ålandsrörelsen) wanted Åland to reunite with its old mother country Sweden (Finland and Åland belonged to Sweden before 1809). The movement gathered signatures from over 7000 inhabitants of legal age at the Åland Islands in 1917 (that was about 96% of the population) - they all supported a union with Sweden. When Finland became independent (December 6, 1917) Sweden wanted a plebiscite about the future of the Åland Islands to solve the problem. Finland refused and argued that the Åland Islands had always been a natural part of Finland - even when Finland was under Swedish rule. Sweden appealed to the League of Nations referring to the right of the population to determine which country they should belong to. After studying the matter closely the League of Nations decided Finland should retain sovereignty over the province but that the Åland Islands should be made an autonomous territory. The Swedish Prime Minister said he didn't accept the verdict but he also said that Sweden was not going to use military force to get their claims.
Graham Island	Two Sicilies Malta France Spain	1831	1831	A dispute between the Kingdom of the Two Sicilies, the British Crown Colony of Malta, the Kingdom of France and the Kingdom of Spain occurred after the volcanic island appeared in 1831. The British were the first to claim the island as part of Malta, and they were followed by the Two Sicilies and France, while Spain expressed their ambitions to control the island. The island disappeared by December 1831 and the dispute stopped. A Sicilian flag was lowered over the now submerged island in 2000 to show Italian claims to the area. It is no longer disputed by Britain, France, Spain or Malta.
Lampedusa	Sicily Malta	1800	1814	The island was controlled by British troops as a de facto part of the Malta Protectorate from 1800 onwards. After a British royal commission was sent there in 1812, the new Governor of Malta Sir Thomas Maitland withdrew British troops and the island was returned to Sicily.
Tenedos	Turkey Greece	1920	1923	On 11 August 1920, following World War I, the Treaty of Sèvres with the defeated Ottoman Empire granted the island to Greece, who joined the war in Allies' side in May 1917. The new Turkish Government of Mustafa Kemal Atatürk, based in Ankara, which was not party to the treaty, overthrew the Ottoman government, which signed but did not ratify the treaty. After the Turkish War of Independence ended in Greek defeat in Anatolia, and the fall of David Lloyd George and his Middle Eastern policies after the Carlton Club meeting, the western powers agreed to the Treaty of Lausanne with the new Turkish Republic, in 1923. This treaty made Tenedos and Imbros part of Turkey, and it guaranteed a special autonomous administrative status there to accommodate the Greeks.
Northern Ireland	United Kingdom Ireland	1920	1998	Formerly disputed between Ireland and the United Kingdom since partition on 23 December 1920, it was settled by the Good Friday Agreement in 1998, when Ireland amended its constitutional claim. Both countries acknowledged that the territory can join the rest of Ireland if separate referendums in both Northern Ireland and the Republic of Ireland approve of the former's cession.
Pytalovo (Abrene in Latvia)	Russia Latvia	1991	2007	Pytalovo was a village in the parish of Vyshgorogok, the westernmost part of the Ostrov uyezd, Governorate of Pskov that was ceded from RSFSR to Latvia under the Treaty of Riga (1920) along with parishes of Kachanovo and Tonkovo. In 1940 Latvian Republic was annexed by the Soviet Union and Latvian SSR was established, encompassing the above named territories until 1944 when they were transferred to the district of Ostrov, Pskov Oblast, RSFSR. Since 1991 reestablished Republic of Latvia disputed Russian jurisdiction over the region until the border treaty with Russia was signed in 2007.
Ivangorod, Izborsk and Pechorsky District	Russia Estonia	1991	2007	As of 1916, Ivangorod, the eastern suburb of Narva, constituted the westernmost town of the St.Petersburg Governorate on the border with the Governorate of Estonia. The towns of Pechory and Izborsk with respective parishes were the westernmost parts of the Governorate of Pskov. Under the Treaty of Tartu, 1920 the above territories were ceded from RSFSR to the newly established Republic of Estonia that was annexed by the USSR in 1940 as the Estonian SSR. In 1944 with two decrees of the USSR supreme Council the city of Narva and vicinity was split along Narova river leaving Narva with Estonia and Ivangorod with the Leningrad oblast. Pechory, Izborsk and Panikovichi with respective parishes as well as certain areas of Slobodskaya parish were transferred to the Pskov Oblast. Exception was made for some rural areas of the borderland populated by ethnic Estonians leaving these with Estonian SSR. After the fall of the Soviet Union this caused a territorial dispute that was resolved by the Russian-Estonian Border Treaty. Some sources argue Estonia might have claims in the area.
Sevastopol	Russia Ukraine	1993	1997	On July 28, 1993, one of the leaders of the Russian Society of Crimea, Viktor Prusakov, stated that his organisation was ready for an armed mutiny and establishment of the Russian administration in Sevastopol. In May 1997, Russia and Ukraine signed the Peace and Friendship Treaty, ruling out Moscow's territorial claims to Ukraine. However, the dispute would be revived after the Russian military intervention in Ukraine and the annexation of Crimea in 2014.
Black Sea and Snake Island	Ukraine Romania	2004	2009	In 2004 Romania filed a case to International Court of Justice claiming that Ukraine's Snake Island was an uninhabitable rock under UNCLOS standards and thus not eligible to carry influence over determination of the maritime boundary between the two states. During the Soviet times the island was a small naval station with a lighthouse. In 2007 the Ukrainian parliament approved an establishment of a small hamlet (settlement) there, Bile, as part of Vylkove city Odessa Region. The maritime boundary issue was settled by the International Court of Justice in 2009.
Vilnius Region	Lithuania Poland	1920	1945	During the Polish-Soviet War Polish armies entered the Vilnius Region which was at the time part of the Soviet Lithuanian-Belorussian Soviet Socialist Republic. In 1920, Polish General Lucjan Zeligowski led a coup and established the Republic of Central Lithuania which was annexed to the Second Polish Republic after the war as part of the historic Polish–Lithuanian Commonwealth and due to ethnic Poles in the region. Lithuania moved its capital to Kaunas while never giving up its claim to Vilnius. The Lithuanians found support in the Soviet Union for their cause signing the Soviet-Lithuanian Mutual Assistance Treaty in 1939. Following the Soviet invasion of Poland, the region came under Soviet control and became part of the Lithuanian SSR after World War II which was followed by a large number of ethnic Poles being deported two times. Following the fall of the Soviet Union and Act of the Re-Establishment of the State of Lithuania the Vilnius region became part of Lithuania again.
Passetto di Borgo in the vicinity of the Vatican City	Italy Holy See	1870	1991	Pope John Paul II recognized the sovereignty of Italy over the Passetto on May 18, 1991.

See also

• Demilitarized zone
• Dependent territory
• Frozen conflict
• List of border conflicts
• List of countries and territories by land and maritime borders
• List of sovereign states
• Lists of active separatist movements
• Neutral territory
• List of administrative divisions by country
• Territorial claims in the Arctic
• Territorial disputes in the Persian Gulf
• List of internal boundary disputes in the Philippines

External links

• "Government Statistics: Transnational Issues: Disputes: International (most recent) by country". Nation Master.