July 31, 1945:
--In Germany, Admiral William D. Leahy, chief of staff to Truman--and the highest-ranking U.S. military officer during the war--continues to privately express doubts about the bomb, that it may not work and is not needed, in any case. (Gen. Eisenhower had just come out against using the Bomb.) Leahy would later write in his memoirs:
"It is my opinion that the use of this barbarous weapon at Hiroshima and Nagasaki was of no material assistance in our war against Japan. The Japanese were already defeated and ready to surrender because of the effective sea blockade and the successful bombing with conventional weapons.
"The lethal possibilities of atomic warfare in the future are frightening. My own feeling was that in being the first to use it, we had adopted an ethical standard common to the barbarians of the Dark Ages. I was not taught to make war in that fashion, and wars cannot be won by destroying women and children."
--The assembly of Little Boy is completed. It is ready for use the next day. But a typhoon approaching Japan will likely prevent launching an attack. Several days might be required for weather to clear.
--Secretary of War Stimson sends semi-final draft of statement for Truman to read when first bomb used and he has to explain its use, and the entire bomb project, to the U.S. and the world, with this cover note: "Attached are two copies of the revised statement which has been prepared for release by you as soon as the new weapon is used. This is the statement about which I cabled you last night. The reason for the haste is that I was informed only yesterday that, weather permitting, it is likely that the weapon will be used as early as August 1st, Pacific Ocean Time, which as you know is a good many hours ahead of Washington time." The statement would later be amended to include the name of the first city destroyed and add that it was not a city but a "military base."
It is an atomic bomb. It is a harnessing of the basic power of the universe. The force from which the sun draws its power has been loosed against those who brought war to the Far East.