iron curtain remains in bratislava

iron curtain remains bratislava slovakia slovak slovakian republic city capital pecniansky les forest pecna boundary border former cold war warsaw pact czechoslovakia soviet union relic relics past relict relicts fortifications fortification ussr cccp division trail eastern bloc austria austrian entanglements wire wireentanglements barbed bunker evening sunset sun sunlight sundown trench trenches czechoslovakian part so called period