Six months after the bombing of Pearl Harbor, the shockwaves of war have flooded into every corner of the Pacific, from Alaska to parts of China to New Guinea. U.S. soldiers head into unfamiliar worlds thousands of miles from home, encountering steamy island jungles, bitter arctic cold, and an unrelenting enemy. Through rare personal films and color combat footage, witness early Allied victories-in the Coral Sea, Guadalcanal, and at Midway-that turned the tide of the war.

• Jeff Wilburn