Russia On 8 August 1945, the Soviets told Japan that the Soviet Union had declared war on it, and that they would consider themselves to be at war from 9 August. Emperor Hirohito announced Japan's surrender to the Japanese population on 15 August.
Concentric circles on the sea floor near Japan, about 2 m (7 ft) in diameter with intricate ridged radial lines and valleys of sand, are what?
