The information thrust upon Truman a momentous decision:
whether or not to use the world’s first weapon of mass
destruction.

The first bomb was exploded over Hiroshima on August 6,
1945, and a second was dropped on Nagasaki on August 9.

The Japanese quickly surrendered. Although other nations
have developed atomic weapons and nuclear technology
since 1945, Truman remains the only world leader to have
ever used an atomic bomb against an enemy.