Operation Guardian

Guardian
Information
Country	United States
Test site	NTS Area 12, Rainier Mesa; NTS Area 19, 20, Pahute Mesa; NTS, Areas 1-4, 6-10, Yucca Flat
Period	1980-1981
Number of tests	14
Test type	underground shaft, underground tunnel
Max. yield	140 kilotonnes of TNT (590 TJ)
Test series chronology
← Operation Tinderbox Operation Praetorian →

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Operation Guardian was a series of 14 nuclear tests conducted by the United States in 1980-1981 at the Nevada Test Site. These tests followed the Operation Tinderbox series and preceded the Operation Praetorian series.

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