The PATCO Strike of 1981 was a union-organized work stoppage by air traffic controllers (ATCs) in the United States. the Professional Air Traffic Controllers Organization (PATCO) declared a strike on August 3, 1981, after years of tension between controllers and the federal government over long hours, chronic understaffing, outdated equipment, and rising workplace stress. Despite 13,000 ATCs striking, the strike ultimately failed, as the Reagan administration was able to replace the striking ATCs, resulting in PATCO's decertification.
The failure of the PATCO strike impacted the American labor movement, accelerating the decline in labor unions in the country, and initiating a much more aggressive anti-union policy by the federal government and private sector employers.