For more than 40 years after the Second World War the Iron Curtain divided Europe physically, with 300 km of walls and barbed wire fences; ideologically, between communism and capitalism; psychologically, between people imprisoned under totalitarian dictatorships and their neighbours enjoying democratic freedoms; and militarily, by two mighty, distrustful power blocs, still fighting the cold war. East-West rivalry and a cruelly divided continent seemed to be unalterable facts of life. Few statesmen, diplomats, soldiers or thinkers imagined these certainties would change in their lifetimes. At the start of 1989, ten European nations were still Soviet vassal states. By the end of the year, one after another, they had thrown off communism, declared national independence, and embarked on the road to democracy. One of history's most brutal empires was on its knees. Poets who had been languishing in jails became vice presidents. When the Berlin Wall fell on a chilly November night it seemed