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Crewmembers of the 'Enola Gay,' the American B-29 bomber which dropped the atomic bomb on Hiroshima, including (left to right) co-pilot Captain Robert A. Lewis, commander and pilot Paul W. Tibbets Jr., tailgunner Staff Sergeant George Caron, and flight engineer Staff Sergeant Wyatt Duzenbury, proudly parade through New York on a jeep in the first Army Day Parade since the end of the War, April 12, 1946. (Photo by Keystone/Getty Images)

Crewmembers of the 'Enola Gay,' the American B-29 bomber which dropped the atomic bomb on Hiroshima, including (left to right) co-pilot Captain Robert A. Lewis, commander and pilot Paul W. Tibbets Jr., tailgunner Staff Sergeant George Caron, and flight engineer Staff Sergeant Wyatt Duzenbury, proudly parade through New York on a jeep in the first Army Day Parade since the end of the War, April 12, 1946. (Photo by Keystone/Getty Images)