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:  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. Nuclear weapon design: Nuclear weapon designs are physical, chemical, and engineering arrangements that cause the physics package of a nuclear weapon to detonate.
i don't know