What is the name given to the final series of 7 US nuclear tests that took place in 1991 to 1992?
Operation Julin The United States's Julin nuclear test series was a group of 7 nuclear tests conducted in 1991–1992. These tests followed the "Operation Sculpin" series, and were the last before negotiations began for the Comprehensive Test Ban Treaty.
Operation Phalanx The United States's Phalanx nuclear test series was a group of 18 nuclear tests conducted in 1982-1983. These tests followed the "Operation Praetorian" series and preceded the "Operation Fusileer" series.