Twenty years ago, on November 9th, the Berlin Wall came tumbling down.
The greatest symbol of the Cold War, which many never dreamt they would see disappear, was overwhelmed by people power.
This momentous event precipitated largely peaceful revolutions across Eastern Europe as people shook off 40 years of communism.
The BBC’s World Affairs Editor John Simpson, experienced it at first hand.
He was in the thick of the action for the gun battles in Bucharest, Romania.
Taking Romania as an example, John looks are the re-integration of Central and Eastern Europe into Europe as a whole and asks how well has the process has been managed.