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.
Cannikin Cannikin was an underground nuclear weapons test performed on November 6, 1971, on Amchitka island, Alaska, by the United States Atomic Energy Commission. The experiment, part of the Operation Grommet nuclear test series, tested the warhead design for the LIM-49 Spartan anti-ballistic missile. With an explosive yield of almost 5-megatons TNT equivalent, the test was the largest underground explosion ever detonated by the United States.