When Was the Nuclear Test Ban Treaty Signed?

On August 5, 1963, after more than eight years of difficult negotiations, the United States, the United Kingdom, and the Soviet Union signed the Limited Nuclear Test Ban Treaty.

Why was the nuclear test ban treaty signed?

Representatives of the United States, the Soviet Union and Great Britain sign the Nuclear Test Ban Treaty, which prohibited the testing of nuclear weapons in outer space, underwater, or in the atmosphere. ... Officials from both nations came to believe that the nuclear arms race was reaching a dangerous level.

When was the Limited Test Ban Treaty signed?

The Test Ban Treaty of 1963 prohibits nuclear weapons tests "or any other nuclear explosion" in the atmosphere, in outer space, and under water.