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From Hiroshima to Disarmament

LONDON – On August 6, 1945, the first uranium bomb was exploded above Hiroshima with the force of 15,000 tons of TNT. A total of 140,000 people died that year as a result of the blast and fireball that engulfed the city, falling debris, and the radioactive fallout. Three days later, Nagasaki was shattered by a plutonium bomb that matched the design of a bomb that the United States had tested in the New Mexico desert three weeks earlier.

The success of that test prompted the Manhattan Project’s lead scientist, Robert Oppenheimer, to reflect that he had become a “destroyer of worlds.” Over the next 40 years, the five permanent members of the United Nations Security Council (the US, the Soviet Union, the United Kingdom, France, and China) amassed roughly 70,000 nuclear weapons, with a combined explosive force of 15 million tons of TNT.