USA HISTORY

Detailed explanation-1: -The Cuban missile crisis showed that neither the United States nor the Soviet Union were ready to use nuclear weapons for fear of the other’s retaliation (and thus of mutual atomic annihilation). The two superpowers soon signed the Nuclear Test-Ban Treaty of 1963, which banned aboveground nuclear weapons testing.

Detailed explanation-2: -Kennedy signed the ratified treaty on October 7, 1963. The treaty: prohibited nuclear weapons tests or other nuclear explosions under water, in the atmosphere, or in outer space. allowed underground nuclear tests as long as no radioactive debris falls outside the boundaries of the nation conducting the test.

Detailed explanation-3: -The Limited Test Ban Treaty was signed by the United States, the Soviet Union, and Great Britain in 1963, and it banned all nuclear tests in the atmosphere, in space, or underwater.

Detailed explanation-4: -Nuclear weapon tests have been carried out in all environments: above ground, underground and underwater. Atmospheric testing was banned by the 1963 Partial Test Ban Treaty. Negotiations had largely responded to the international community’s grave concern over the radioactive fallout resulting from atmospheric tests.

Detailed explanation-5: -It opened for signature in New York on 24 September 1996, when it was signed by 71 states, including five of the eight then nuclear-capable states. As of January 2023, 177 states have ratified the CTBT and another nine states have signed but not ratified it.