What is the correct definition of the end of the Cold War?

The end of the Cold War is commonly defined as the period marking the decline of ideological and geopolitical tensions between the Soviet Union and the Western bloc, particularly the United States, culminating around the late 1980s to early 1990s. Key events include the fall of the Berlin Wall in 1989 and the dissolution of the Soviet Union in December 1991. This shift led to the collapse of communist regimes in Eastern Europe and the emergence of a unipolar world dominated by the U.S.