Note handed to Naotake Sato, Japanese Ambassador to the USSR, by Soviet Foreign Minister Vyacheslav Molotov in Moscow, on August 8, 1945:
Soviet Declaration of War on Japan, 8 August 1945
After the defeat and capitulation of Hitlerite Germany, Japan remained the only great power which still stands for the continuation of the war.
The demand of the three powers ,the United States, Great Britain and China, of July 26 for the unconditional surrender of the Japanese armed forces was rejected by Japan. Thus the proposal made by the Japanese Government to the Soviet Union for mediation in the Far East has lost all foundation.
Taking into account the refusal of Japan to capitulate, the Allies approached the Soviet Government with a proposal to join the war against Japanese aggression and thus shorten the duration of the war, reduce the number of casualties and contribute toward the most speedy restoration of peace.
True to its obligation as an Ally, the Soviet Government has accepted the proposal of the Allies, and has joined in the declaration of the Allied powers of July 26.
The Soviet Government considers that this policy is the only means able to bring peace nearer, to free the people from further sacrifice and suffering and to give the Japanese people the opportunity of avoiding the danger of destruction suffered by Germany after her refusal to accept unconditional surrender.
In view of the above, the Soviet Government declares that from tomorrow, that is from August 9, the Soviet Union will consider herself in a state of war against Japan.
Transcribed and formatted for HTML by Patrick Clancey, HyperWar Foundation