who was president when the atomic bombs were dropped
Atomic bombings of Hiroshima and Nagasaki Groves expected to have another atomic bomb ready for use on August 19, with three more in September and a further three in October.[86] On August 10, he sent a memorandum to Marshall in which he wrote that "the next bomb ... should be ready for delivery on the first suitable weather after 17 or 18 August." Marshall endorsed the memo with the hand-written comment, "It is not to be released over Japan without express authority from the President",[86] something Truman had requested that day. This modified the previous order that the target cities were to be attacked with atomic bombs "as made ready".[226] There was already discussion in the War Department about conserving the bombs then in production for Operation Downfall, and Marshall suggested to Stimson that the remaining cities on the target list be spared attack with atomic bombs.[227]