Food - Weapon of Conquest is a 22-minute 1941 Canadian documentary film, made by the National Film Board of Canada (NFB) as part of the wartime Canada Carries On series. The film was directed and produced by Stuart Legg. Food - Weapon of Conquest shows the food shortage in Nazi-occupied countries in the Second World War, contrasted with the Allied response to the global food crisis. The film's French version title is Une armée marche sur son estomac.