It refers to the Soviet Union's efforts to block itself and satellite states under it from any contact with the West and its allied states.
Explanation:
The iron curtain was an imaginary line that divided Europe into two different areas of ideology and political influence beginning from the end of the Second World War (1945) to the end of the Cold War (1991).
The term specifically refers to the Soviet Union's (USSR) efforts to block itself and satellite states under it from any contact with the West and her allies. Countries that existed on the east side of the Iron Curtain were countries that were influenced by the Soviet Union. On the other hand, countries which existed on the west side were countries that were members of NATO.
The setting-up of a base at Guantanamo Bay. This happened after the war. The U.S. obtain Guam, the Philippines and
Puerto Rico from the Spanish. They did
not acquire Cuba but kept a lease on Guantanamo Bay. This was America’s entry into Imperialism.
