The fall of the Berlin Wall began the destruction of what Cold War boundary?

The fall of the Berlin Wall began the destruction of the Cold War boundary known as the Iron Curtain.

“Iron Curtain” was the political metaphor for the division separating Soviet-aligned Eastern Europe from Western Europe. The Berlin Wall was its most powerful physical symbol, dividing East and West Berlin from 1961 until its opening on 9 November 1989.

The Wall’s collapse was part of the Peaceful Revolution in East Germany and followed months of pressure, protests, and border openings elsewhere in Eastern Europe. Crowds overwhelmed checkpoints after an East German travel announcement was mistakenly presented as taking effect immediately. The Wall was then chipped away by citizens and officially dismantled beginning in June 1990.

The Iron Curtain was not a single continuous wall, so “destruction” here is figurative and geopolitical. The fall of the Berlin Wall accelerated the collapse of communist governments across the region and helped lead to German reunification on 3 October 1990.