At home and overseas, the United States Coast Guard served a variety of vital functions in World War II, providing service that has been too little recognized in histories of the war. Teaming up with other international forces, the Coast Guard provided crewmembers for Navy and Army vessels as well as its own, carried troops, food, and military supplies overseas, and landed Marine and Army units on distant and dangerous shores.

This thorough history details those and other important missions, which included combat engagement with submarines and kamikaze planes, and typhoons. On the home front, port security missions involving search and rescue, fire fighting, explosives, espionage and sabotage presented their own unique dangers and challenges.