The primary motivation for developing nuclear weapons during the Cold War was to deter potential aggression from rival superpowers, particularly the United States and the Soviet Union.

The primary participants in the nuclear arms race during the Cold War were the United States and the Soviet Union, as they possessed the most advanced nuclear weapons programs.

The Partial Nuclear Test Ban Treaty (PTBT) was signed in 1963 to limit nuclear testing to underground explosions.

The United States adopted the policy of Non-Proliferation during the Cold War to prevent the spread of nuclear weapons to other countries.

The Berlin Blockade, which occurred from 1948 to 1949, is often considered the beginning of the Cold War.

The Manhattan Project was the U.S. government agency responsible for developing nuclear weapons during the Cold War.

The Manhattan Project was the U.S. government agency responsible for developing nuclear weapons during the Cold War.

The Soviet Atomic Energy Project was the Soviet Union's nuclear weapons program during the Cold War.

The Strategic Arms Limitation Treaty (SALT I) was signed in 1972 to limit the number of strategic nuclear weapons.

The United States and the Soviet Union adopted the policy of Mutually Assured Destruction (MAD) during the Cold War, which aimed to maintain a balance of power between the two superpowers.

The Fall of the Berlin Wall in 1989 is often considered the end of the Cold War.

The Strategic Arms Reduction Treaty (START I) was signed in 1991 to reduce the number of strategic nuclear weapons.

The Chemical Weapons Convention (CWC) was signed in 1993 to ban the development, production, and stockpiling of chemical weapons.

The Comprehensive Nuclear-Test-Ban Treaty (CTBT) was signed in 1996 to ban the comprehensive testing of nuclear weapons.

The United States was the first country to develop a hydrogen bomb in 1952.