<Table> <Tr> <Td> </Td> <Td> This section needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (March 2014) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This section needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (March 2014) (Learn how and when to remove this template message) </Td> </Tr> <P> The Iron Curtain took physical shape in the form of border defenses between the countries of western and eastern Europe . These were some of the most heavily militarised areas in the world, particularly the so - called "inner German border"--commonly known as die Grenze in German--between East and West Germany . The inner German border was marked in rural areas by double fences made of steel mesh (expanded metal) with sharp edges, while near urban areas a high concrete barrier similar to the Berlin Wall was built . The installation of the Wall in 1961 brought an end to a decade during which the divided capital of divided Germany was one of the easiest places to move west across the Iron Curtain . </P> <P> The barrier was always a short distance inside East German territory to avoid any intrusion into Western territory . The actual borderline was marked by posts and signs and was overlooked by numerous watchtowers set behind the barrier . The strip of land on the West German side of the barrier--between the actual borderline and the barrier--was readily accessible but only at considerable personal risk, because it was patrolled by both East and West German border guards . </P>

What country was divided by the iron curtain