Napalma was first used in Vietnam by the United States. This weapon has already been used, on time, for example in the Indochina War. It was first used on 22 December 1950. However, during the Vietnam War, the US air force used it systematically by exterminating the territory and the civilian population. Photographs in which the nine-year-old girl Phan Thi Kim Phúc can be seen running roasted with napalma, became one of the symbols of American cruelty and turned around the world.