According to wikipedia Harry S. Truman was president from April 1945-1953 which would make him president in August 1945 when the first atomic bomb was dropped.
President Truman.
Truman
President Truman.
Truman
Truman
Type your answer here... Pesident Harry s. Truman
Harry Truman
Hiroshemia was a town in Japan, which during WW2 the U.S dropped a nuclear bomb on.
Dropped on Japan to end the war.
Harry S. Truman
Atom bomb dropped in Japan by the U.S. during WWII
If you are referring to the nuclear bomb, it was dropped over Japan in world war 2 and not the cold war. Those bombs were authorized by President Truman.