How did the allies finally defeat the axis powers?

The Soviet pushed into Poland, forcing a mass German retreat. The US, Britain, and Canada invaded Normandy in 1944, driving past the Rhine in 1945. Both sides, Soviet and Democratic, encircled Berlin, and the Soviets took Berlin. Then, to prevent from a very costly invasion of the Japanese homeland, the United States atomic bombed both Hiroshima and Nagasaki, which forced a Japanese surrender.