Declassified 1953 Secrets: Operation Upshot-Knothole's Groundbreaking Nuclear Tests Revealed! ☢️

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This series of 11 atmospheric tests took place at the Nevada Test Site and comprised three airdrops, seven tower tests, and one airburst. Executed between March 17 and June 4, 1953, the operation aimed to validate new theories utilizing both fission and fusion devices. A groundbreaking method for creating deployable thermonuclear weapons was successfully tested during this period. Operation Upshot-Knothole, integrated as part of the Desert Rock V exercise, involved the active participation of around 21,000 Department of Defense military and civilian personnel.

Regrettably, Operation Upshot-Knothole, particularly the HARRY test, faced substantial criticism due to elevated fallout levels resulting in increased radiation exposures beyond the test site boundaries.

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