How strong was the wartime alliance 1941-1945?

The wartime alliance between the United States, the Soviet Union, and the United Kingdom from 1941 to 1945 was a pragmatic partnership forged out of necessity to combat the Axis powers. Despite significant ideological differences and mutual suspicions, the Allies collaborated effectively on military strategy, shared intelligence, and coordinated resources. Key conferences, such as those in Tehran and Yalta, highlighted both their cooperation and the underlying tensions that would later contribute to the Cold War. Ultimately, while the alliance was crucial for achieving victory, it was often tenuous and marked by competing national interests.