he didn't
Limited Test Ban Treaty of 1963, aka the Atmospheric Test Ban Treaty
The Limited Test Ban Treaty of 1963.
Bosnia-Herzegovina has ratified the Comprehensive Nuclear Test Ban Treaty,
To slow the development of new and more deadly weapons.
to slow the development of new and more deadly weapons
underground
underground
underground
The Communist government of China was outraged when the USSR and the USA signed the famous test ban treaty regarding nuclear weapons. One main charge of China was that the USSR signed this treaty with the USA in order to prevent China from obtaining nuclear weapons.
Atmospheric Test Ban Treaty
Many, such as the Nuclear Test Ban Treaty and the Extradition Treaty.
The last U.S. above-ground (atmospheric) test was in 1963. The last U.S. underground test was in 1992. The Comprehensive Test Ban Treaty (signed by many major powers) ended testeing of all kinds, atmospheric or underground, in 1992. The U.S. models (with supercomputers) characteristics of nuclear weapons 'explosions' in order to 'test' its weapons designs.