1983 Arizona copper mine strike
The 1983 Arizona copper mine strike began as a labour dispute between the Phelps Dodge Corporation and a group of union copper miners and mill workers, led by the United Steelworkers. The subsequent strike lasted nearly three years and resulted in the replacement of most of the striking workers and decertification of the unions.
Source: Wikipedia — 1983 Arizona copper mine strike (CC BY-SA 4.0)