Hard rock miners in Shoshone County protested wage cuts with a strike in 1892. After several lost their lives in a shooting war provoked by discovery of a company spy, the U.S. army forced an end to the strike. Hostilities erupted once again in 1899 when, in response to the company firing seventeen men for joining the union, the miners dynamited the Bunker Hill & Sullivan mill. Again, lives were lost, and the U.S. Army intervened, requested by Governor Frank Steunenberg, as the Idaho National Guard troops were still stationed in the Philippines following the Spanish–American War. Steunenberg was assassinated outside his residence in Caldwell in 1905, nearly five years after leaving office, and the subsequent trials in Boise in 1907 made national headlines.