Cold War Era Developments refer to the political, military, and social changes that occurred between the end of World War II and the collapse of the Soviet Union in 1991. This period was marked by a significant ideological conflict between the United States and its allies, promoting democracy and capitalism, versus the Soviet Union and its communist allies, resulting in various proxy wars, nuclear arms races, and global realignments. Key political figures during this era played crucial roles in shaping policies and responses to these developments.