Which declaration did Japan accept in August 1945 to begin the surrender process?

Japan accepted the Potsdam Declaration in August 1945 to begin the surrender process.

The United States, the United Kingdom, and China issued the declaration on July 26, 1945, during the Potsdam Conference. It set out the terms for Japan's surrender and warned that refusal would bring “prompt and utter destruction.”

The declaration called for the disarmament of Japan, punishment of war criminals, occupation of selected Japanese territory, and the removal of militarist influence. It also stated that Japan could retain industries needed for its economy but could not maintain the capacity to rearm for war.

The document did not explicitly mention Emperor Hirohito's future status. This omission contributed to debate within the Japanese government, especially over whether accepting the terms would end the imperial institution. Hirohito ultimately directed the government to accept the declaration, and his decision was announced by radio on August 15. The formal surrender document followed on September 2.