Gunner's Mate Second Class Charles J. Hansen works on 40mm quad anti-aircraft gun mount during the shakedown cruise of the Iowa-class battleship USS Missouri, mid to late 1944. (Photo by PhotoQuest/Getty Images)
Gunner's Mate Second Class Charles J. Hansen works on 40mm quad anti-aircraft gun mount during the shakedown cruise of the Iowa-class battleship USS Missouri, mid to late 1944. (Photo by PhotoQuest/Getty Images)