Vincent, 97, was only 19 years old when he flew as a co-pilot on early missions out of Tinian to Japan. They claimed as many or more casualties and laid waste to as much territory in an even larger city. Though the first A-bomb changed warfare forever, the bombing runs on Tokyo, some experts argue, may have done as much or more to devastate the Japanese military’s will to fight. (Bill Webster/6th Bomb Group Association) B-29s in flight off of Tinian during World War II.