How many existing basic design types are there of the weapons the United States and the Soviet Union had an arms race over?
Nuclear arms race The nuclear arms race was a competition for supremacy in nuclear warfare between the United States, the Soviet Union, and their respective allies during the Cold War. During this period, in addition to the American and Soviet nuclear stockpiles, other countries developed nuclear weapons, though none engaged in warhead production on nearly the same scale as the two superpowers.
List of nuclear weapons tests of China The List of nuclear weapons tests is a listing of the Chinese nuclear tests conducted from 1964 through 1996. Most listings of the Chinese tests show 45 tests in the series with 45 devices, with 23 tests being atmospheric.