En svensk tiger
En svensk tiger was a slogan that became part of a propaganda campaign in Sweden during World War II, preventing espionage by encouraging secrecy towards foreigners. In Swedish, svensk can mean both the adjective "Swedish" and the noun "Swede" while tiger can mean either the noun for the animal or the present tense of the verb tiga ("to keep silent"), giving the poster the double meaning "a Swedish tiger" and "a Swede keeps silent". Comparable in use to "loose lips sink ships" in English.
The famous poster for the propaganda campaign was created by Bertil Almqvist in 1941, commissioned by the Swedish National Board of Information (Template:Lang-sv, SIS). The poster became the main slogan of the Swedish Vigilance Campaign (Vaksamhetskampanjen) that was started in the same year to encourage secrecy towards foreigners about information that may damage the Swedish military defense. Upon Almqvist's death in 1972, the copyright of the poster/logo was transferred to the museum Beredskapsmuseet.