Hors de combat
Appearance
Hors de combat, literally meaning "out of the fight," is a French term used in diplomacy and international law to refer to soldiers who are incapable of performing their military function. Examples include a downed fighter jet pilot, as well as the sick, wounded, detained, or otherwise disabled. Soldiers hors de combat are normally granted special protections according to the laws of war, sometimes including prisoner of war status.
See also
Kurt Vonnegut describes himself as an 'hors de combat' on the title page of his famous anti-war novel, Slaughterhouse Five. "...who, as an American Infantry Scout hors de combat, as a prisoner of war, witnessed the fire bombing of Dresden, ..."