The notable wall that was divided into East and West during the Cold War was the Berlin Wall. Erected in 1961, it symbolized the divide between capitalist West Berlin and communist East Berlin. The wall was a physical manifestation of the ideological conflict between the United States and the Soviet Union, and it restricted free movement between the two regions. Its fall in 1989 marked the beginning of the end of the Cold War, signaling a significant shift towards reunification of Germany and the decline of Soviet influence in Eastern Europe.