What is Iron Curtain?
[[File:Iron Curtain map.svg|thumb|right|Countries behind Iron Curtain are shaded red. [[Socialist Federal Republic of Yugoslavia|Yugoslavia]], although communist-run, was independent of the [[Eastern Bloc]]. Similarly, communist [[Albania]] broke with the [[Soviet Union]] in the early [[1960s]], aligning itself with the [[People's Republic of China]] after the [[Sino-Soviet split]].]] The '''Iron Curtain''' is a term related to the [[Cold War]]. It means the border between the states that were members of the [[Warsaw Pact]] (in [[Eastern Europe]]), and those that were not (then called ''[[Western world|The West]]''). This border was between [[East Germany]] and [[West Germany]], between [[Czechoslovakia]] and [[Austria]], and between [[Hungary]] and [[Austria]]. At the end of World War II [[Austria]], Germany and [[Berlin]] were divided into four zones. In 1955, a [[Austrian State Treaty|treaty]] was signed. The treaty said that the Allied forces must leave Austria. In return, the Austrian government promised to do certain things, like not form a territorial union with Germany and recognise certain [[minority|minorities]], amongst others. The whole of [[Europe]] was separated into a Soviet Union zone in the East and a neutral or US-dominated zone in the West.<ref>{{cite web |url= http://www.bpb.de/themen/36HEVF,5,0,Der_Beginn_der_Bipolarit%E4t.html |title=Der Beginn der Bipolarität - Deutsche Teilung im Kalten Krieg (The onset of bipolarity - German division during the Cold War) |language=German |work=bpb.de |year=2011 |accessdate=19 February 2011}}</ref> The splitting of Europe, Germany and especially Berlin into two political blocks was part of the Cold War between the United States of America and other western countries on one side and the Soviet Union and its allies on the other. The wartime Allied Forces split after their common enemy, [[Nazi Germany]], was defeated in May 1945. The idea of the Iron Curtain was referring to the separation of the communist Europe compared to the democratic west, it was