Learn about the Iron Curtain with iMinds insightful knowledge series.The "iron curtain" is the term used to describe the strict division of Western and Eastern Europe between 1945 and 1991. The conflict was between Western Allies and the Soviet Union. Although they had been allies during World War Two, they soon became bitter rivals after it ended.World War Two was waged from 1939 until 1945. From the early 1940s, three of the strongest Allied powers in the war were the US, Britain, and the Soviet Union. They worked together to defeat the Nazis. But their different ideologies and governments caused the alliance to dissipate after the war.iMinds brings targeted knowledge to your eReading device with short information segments to whet your mental appetite and broaden your mind.