1968 American war film about the formation and first mission of the joint Canadian-American WWII special forces winter and mountain unit formally called 1st Special Service Force, but commonly known as “The Devil’s Brigade”. The film dramatises the Brigade’s first mission in the Italian Campaign, the task of capturing the German mountain stronghold Monte la Difensa, in December 1943. The film is based on the 1966 book of the same name, co-written by American novelist and historian Robert H. Adleman and Col. George Walton, a member of the brigade.