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 Mandrel The United States's Mandrel nuclear test series was a group of 52 nuclear tests conducted in 1969-1970. These tests followed the "Operation Bowline" series and preceded the "Operation Emery" series.