<P> Japan was the leader of the Axis powers in the Pacific Theatre . Some people consider that World War II actually began with the invasion of China by Japan in 1937 . The war ended with the capitulation of Japan after the atomic bombings of Hiroshima and Nagasaki by the US . Although the US saw most action in the Pacific Theatre, the United Kingdom also had a role in Japan's defeat, particularly in the Burma campaign . The USSR did not declare war on Japan until 9 August 1945 when it invaded Manchuria . </P> <P> During the war, Kenya was one of the single most important recruiting grounds for the British Army in Africa . During the course of the war, 98,240 Kenyans were recruited as Askaris into the King's African Rifles (KAR), representing 30% of the unit's total strength . The vast majority of soldiers from Kenya, of whom most were volunteers, were overwhelmingly black, however the policy of racial segregation in the British Army meant that they were commanded by white officers and NCOs . Blacks were not able to rise above the rank of Warrant Officer . </P> <P> Kenyan soldiers served in the successful East African Campaign against the Italians, as well as the invasion of Vichy - held Madagascar and the Burma Campaign against the Japanese, alongside troops from west Africa . Kenyans also served in the Royal Navy and some individuals also served in the Royal Air Force . </P> <P> Korea was under Japanese rule as part of Japan's 50 - year imperialist expansion (22 August 1910 ~ 15 August 1945). Formally, Japanese rule ended on 2 September 1945 upon the Japanese defeat in World War II in 1945 . </P>

How many troops did each country have in ww2