With a searchlight beam piercing through the night, a machine gunner and a rifleman are on alert as the British Canadian offensive drive continues, in July 1944, south of Caen, in the Normandy region of France. The D-Day invasion that helped change the course of World War II was unprecedented in scale and audacity. Veterans and world dignitaries are commemorating the 79th anniversary of the operation. (Photo by Pool via AP Photo)
