The "iron curtain" in europe refers to fortifications built along the u. s.s. r.-east european border military rearmament of the nations of eastern europe by the soviets a wall built around berlin to isolate it from east germany barriers to prevent travel and communication between eastern and western europe

It is the boarder that separates Europe into East and West at the End of the Second World War.  The East represented Communist countries while the West represents democratic countries.  It is fortified to keep the territories within under Communist control.

a. competition between france and england for land and power