The Cold War was a period of intense geopolitical tension between the United States and the Soviet Union, characterized by a global struggle for dominance between two opposing political and economic systems. This era of uncertainty and fear was defined by the constant threat of nuclear annihilation, as both superpowers engaged in proxy wars and ideological battles that left millions of people in the crossfire. The conflict, which lasted for nearly five decades, fundamentally reshaped the world order and left an indelible mark on the course of human history.