This is a fascinating account of Australia's M/Z commando unit and the part it played in the Southwest Pacific during World War II. M Unit personnel were secretly landed to set up coast-watching posts and radio stations to monitor Japanese shipping movements and bombing flights. Members of the Z Unit carried out raids in enemy-controlled areas and also attacked targets of opportunity. Many commandos were delivered on their missions by U.S. Navy submarines that sneaked into dangerously shallow waters to put the men ashore. Other operatives were inserted by PT boats, Catalina aircraft, parachute, and snake boats.