How did the fall of the East German communist government lead to German reunification?

The fall of the East German communist government was a catalyst for German reunification, driven by internal collapse and shifting geopolitical conditions.

The process began in 1989 as reformist policies in the Soviet Union and the opening of borders in Hungary allowed thousands of East Germans to flee to the West. Mass protests in cities like Leipzig further destabilized the ruling Socialist Unity Party. The situation reached a turning point on November 9, 1989, when a mistaken announcement led to the opening of the Berlin Wall.

This event proved fatal to the East German state. Following free elections in March 1990, a new government committed to rapid reunification took power. West German Chancellor Helmut Kohl secured the necessary approval from the four World War II Allies through the "two plus four" negotiations, ensuring a sovereign, united Germany would remain a member of NATO. On October 3, 1990, the German Democratic Republic joined the Federal Republic, formally ending 45 years of division.12