Between 1945 and 1990, the United States and the Soviet Union, built and deployed tens of thousands of nuclear weapons.
At its peak in the 1980s their nuclear arsenals contained approximately 24,000 strategic nuclear weapons and at least 23,000 tactical nuclear weapons.
Most of these weapons were many times more powerful than the atomic bombs used on Hiroshima and Nagasaki in 1945.
This nuclear arms race was one of the most dangerous aspects of the cold war and a terrifying threat to our civilization.
Embark on a voyage of discovery through information to one of the the most dangerous period of human history.