Previous - The Allies drive the Soviets back (CYOAH) The Allies decided that the Communists can not be forgiven for what they have done to world peace. The Allies soon gathered a large invasion force, and invaded the Soviet Union. The Allies soon made it to Moscow. The Allies, with their superior technology and better weapons, were able to make it to Moscow. Then, on June 9th, the world's first nuclear bomb went off in Arizona. America had developed nuclear weapons, and could now use it on the USSR, ending the war early. But many people were opposed to killing a large amount of civilians, and the Allies might be able to defeat the Soviet Union in Moscow without using the bomb.