A 280 mm. nuclear-capable cannon being set up for test firing by the 39th Field Artillery Battalion at the Grafenwohr Training Area, West Germany, 28 September 1958. The M65 cannon could fire the W9 nuclear warhead, which had an explosive yield of some 15 kilotons. A gun-type atomic weapon, it was the same kind of weapon that was used to destroy Hiroshima. (National Archives Still Picture Division, Record Group 111-CS, box 31)
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Declassified Records Reflect Debates over Nuclear Weapons Stockpile, Use Decisions, and Independent Nuclear Capabilities
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