Russia Ukraine war, page-55115

@lucky1973
"The Soviets honoured the deal in Teheran and Yalta to declare the war on Japan after Germans were defeated."

Germany surrendered 7 May. The Soviets didn't declare war on Japan for another 3 months.

They wanted to come in and seize territory off Japan after the US, Australia etc had done the hard work. They probably also wanted to give their troops more time for further industrial-scale rape in Europe.