The Hiroshima bomb
Paul Tibbats, the pilot of the ENOLA GAY (the plane that dropped the first atomic bomb on Hiroshima on the 6th of August 1945) has never express regrets. He has always been convinced that the bomb was responsible for saving American lives, and eventually Japanese ones, by removing the necessity for an invasion of Japan.
U.S. Army photo/ courtesy of the Hiroshima Peace Culture Foundation.