Even before World War II had ended, the United States and Soviet Union began to clash. The Cold War began in about 1945 when both the U.S. and the U.S.S.R. started to compete. Josef Stalin, leader of the Soviet union, signed a non-aggression pact with Adolf Hitler, leader of Germany associated with Nazism, during World War II causing a fury with the U.S. Years passed, the U.S.S.R. and United States became opposed of each others forms of governments. As the Soviet Union began to sped the idea of communism, the United States insisted that democracy was the most idealistic form of government; both superpower's tension raised. With nuclear explosives in the hands of both the U.S.S.R. and United States, the world began to fear the destruction that each country could create. As technology grew the "race to space" began, Russia leaving the US behind when they sent the first satellites into space. Both countries grew in power with one another, as they fought to be big, better and stronger.
