The Cold War started almost as soon as the Second World War had ended. During the global conflict, the communist Russians and capitalist Americans had been able to find common cause. They had united in the fight to crush Hitler’s Germany and the other Axis powers.
But once the war was over, the two nations soon remembered the ideological and geopolitical questions that had previously divided them. What’s more, the Cold War took on a distinctly hotter feel after August 1949. In that month, the Russians successfully tested their first nuclear bomb. The Americans, of course, already had such weapons and had used them against Japan at the end of the Second World War.