By 1960, the U.S. war plan called for launching the entire nuclear arse -nal — at the time, 3,423 weapons, exploding with the blast power of 7,847 megatons — against 1,043 tar -gets in the Soviet Union, its satellite countries in Eastern Europe and Communist China. 3 This was not a plan to strike back if the Soviets launched a nuclear attack on the... See more