Final orders of Atomic Bombs to Hiroshima by the Secretary of War in USA

  An experiment of Atomic Bomb was successful on July 16, 1945 in the Aramogord Desert on USA. Nine days after, on July 25, an official Atomic Bomb submission order was issued, based on the approval of the Secretary of War and the Chief of Staff.   Thos T. Hardy of the Chiefs of Staff on behalf of the General Army Chiefs formulated a command of dropping and recording the Atomic Bomb to Gen. Carl Sparts, a commander of the Army Strategic Air Force. Nine days after, from August 3rd, depending on the weather condition, the first special Atomic Bomb was ordered to drop one of the targets: Hiroshima, Kokura, Niigata and Nagasaki with visual inspection from 20th Air Force.