CRP-2B
CRP-2B (Crisis Relocation Program 2B) is a hypothetical scenario of nuclear war between the United States and the Soviet Union that was created in 1976 by the Federal Emergency Management Agency. It involved the detonation of 1,444 weapons, with a yield of 6,559 megatons, and projected an American death toll of between 85 and 125 million (the US population at the time was about 218 million).