In 1945 u.s troops landed troops and tanks in Japan

In 1945,U.S Troops and Britsih Troops landed on the homeland in Japan,instead droppping atom bomb on japanese cities to help end world war-2.
The Soviet Red Army switches sides during World War -2 ,to help the imperial Japanese Army and fight on the same side against invading U.S AND Britsh troops.
The U.S army air force had 5000 b-29 bombers drop bombs on major japanese cities.
The U.S army air force had flown and sent 500,000 b-24 Liberator Bombers to japaneses oil refineries.