when did the soviet union declared war on japan
Soviet–Japanese War The Japanese were caught completely by surprise when the Soviets declared war an hour before midnight on 8 August 1945, and invaded simultaneously on three fronts just after midnight on 9 August.
Consequences of the attack on Pearl Harbor On December 8, 1941, Japan declared war on the United States and the British Empire. The Japanese document discussed world peace and the disruptive actions of the United States and the United Kingdom. The document claimed all avenues for averting war had been exhausted by the Government of Japan.