Wiki User
∙ 13y agoIt was president Franklin D. Roosevelt who order the development of the atomic bomb. It was Harry S. Truman who order its use on Japan during World War II.
Wiki User
∙ 13y agoThe Manhattan Project
President Harry Truman
U. S. President Harry S. Truman authorized the US Military to use the two atomic bombs against the Japanese targets that were previously selected. The local US military commanders would make the final target selection based on weather. Earlier in the war, President Franklin D. Roosevelt had authorized the "Manhattan Project" to create the atomic bombs. He died in office before Germany surrendered, and before the first bomb was tested in the US. His Vice-President Harry Truman assumed the Office of the President.
Truman authorized the dropping of the bombs.
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.
President Franklin D. Roosevelt authorized the development of the atomic bomb, but Harry Truman was President at the time of the bomb's first successful test, and he is the one who authorized its use in populated areas. The Manhattan Project, the development of the atomic bomb, was such a secret that even Vice President Truman didn't know about it until after he became President. (I don't know whether or not Vice President Wallace knew about the project.)
FDR
He authorized its development by the US.
Harry S. Truman .
The Manhattan Project was the secret project to design and build the world's first atomic bomb.
The primary result of the Manhattan project was the development of the atomic bomb.
The Manhattan Project .
The Manhattan Project
August 1945, Japan, US president Truman
Harry S Truman
President Harry Truman
U. S. President Harry S. Truman authorized the US Military to use the two atomic bombs against the Japanese targets that were previously selected. The local US military commanders would make the final target selection based on weather. Earlier in the war, President Franklin D. Roosevelt had authorized the "Manhattan Project" to create the atomic bombs. He died in office before Germany surrendered, and before the first bomb was tested in the US. His Vice-President Harry Truman assumed the Office of the President.