This is a concise history of the unique integrated commando-style brigade of US and Canadian volunteers formed in 1942. Hand picked, and trained in airborne, amphibious, mountain and winter warfare, demolitions and close-quarter tactics, they left a combat legacy still recognized amongst today's Special Forces. This book explores the remarkable results the FSSF achieved in Italy in the harsh mountain fighting on the Winter Line, in the trenches of Anzio, and in the breakthrough to Rome. Accompanied by unique combat photography and illustrations of their distinctive uniforms, this is an insight into a famous, but little explored unit.