As soon as the European Front ended, the Soviet Union joined on the fight against Japan. They were planning on taking claims on the Japanese Territoritory. With the fear of Communism rising, America felt like it was a necessity to end the war before Soviet Union could stake claims to the land. The "Entire World" was afraid of if one Country fell, the other countries close were soon to follow, known as the Domino Effect. The Soviets were quickly rising in strength, since the claimed much of Eastern Europe after the European Front ended. America had to stop the Soviet Union from expanding, no matter the cost.
