1. The United States and the Soviet Union in World War II
In one of history’s most dramatic turnarounds, the United States and the Soviet Union set aside their mutual distrust to combat a greater enemy: Nazi Germany. Their alliance was less about friendship and more about survival and necessity. This uneasy partnership shifted the balance of World War II, leading to victory for the Allies and a new world order. For more on this improbable union, visit History.com.
