FROGMEN, Peacetime training for amphibious invasions of hostile shores in the event of future war combines the lessons learned in World War II landing with postwar developments of landing techniques and weapons. Amphibious operations, from North Africa in November 1942, to Normandy and South France, in June and August, 1944, and in the Pacific and Southwest Pacific, from Guadalcanal and New Guinea in 1942 to the climaxing operations against Iwo Jima and Okinawa in 1945, speeded the winning of the war and saved untold numbers of American causalities. Atlantic Fleet amphibious training during World War II was principally in Little Creek, Virginia, Solomons, Maryland, and Fort Pierce, Florida, and at advanced bases in England. Pacific Fleet training was conducted at Several West Coast bases and in Hawaii., UNDERWATER--This photograph of a swimmer shown under the hull of a ship was made on a 35mm motion picture camera specifically built by E. R. F. Johnson for underwater work.