Question: Julin Bristol is the codename given to a nuclear weapon test conducted at the Nevada Test Site on 26 November 1991, as part of which United States's  nuclear test series was a group of 7 nuclear tests conducted in 1991–1992, the final series of US nuclear tests, it was the last test explosion of a British nuclear weapon?
Sentence (from "1985 Soviet nuclear tests"): These tests followed the "1984 Soviet nuclear tests" series and preceded the "1987 Soviet nuclear tests" series.
Relevant evidence: No