1st Special Service Force- The Devil's Brigade - Canadian-US Commando Force of WWII The 1st Special Service Force (also called The Devil's Brigade, was an elite American-Canadian commando unit in World War II, under command of the United States Fifth Army. The unit was organized in 1942 and trained at Fort William Henry Harrison near Helena, Montana in the United States. The Force served in the Aleutian Islands, and fought in Italy, and southern France before being disbanded in December 1944. Th