Ready For The Second Front -- Party swimming across a waterway. The non-swimmers make use of their kit, ground sheet and anti-gas cape, crossing with ease. The kit is tied up so that it acts as a float. Picture taken during a physical training course for N.C.O.'s from units of a second front division part of the Allied force training in Britain. Training for D-Day: British NCO's swimming a river in England with Full equipment during pre-invasion "toughening" exercises in 1944. July 24, 1944. (Photo by British Official Photograph).