President Truman decides to launch yet another atomic bomb but then decides against it during a cabinet meeting.
President Truman had said that he didn’t want to kill any more people, and especially not kids.
The U.S secretary of state James Byrnes rejects Japan's conditional surrender.
His message states, “From the moment of surrender the authority of the emperor and the Japanese Government to rule the state shall be subject to the Supreme Commander of the Allied Powers.” while “the ultimate form of government of Japan shall be established by the freely expressed will of the Japanese people." The emperor, Hirohito is left powerless https://www.atomicheritage.org/history/hiroshima-and-nagasaki-bombing-timeline
Japan surrendered to the war.
Many continents had already started celebrating their victory as early as May, but in that time Japan was still fighting. The main reason for Japan's surrender was because the Soviet Union entered the war. https://www.historyonthenet.com/when-did-ww2-2-end
Japan signs the surrender documents, marking the end of the war.