President Ronald Reagan fires 11,359 striking air-traffic controllers who ignored his order for them to return to work.

Ronald Wilson Reagan was an American politician and actor who served as the 40th president of the United States from 1981 to 1989. A member of the Republican Party, he became an important figure in the American conservative movement. The period encompassing his presidency is known as the Reagan era.

The Professional Air Traffic Controllers Organization (PATCO) was a United States trade union of air traffic controllers that operated from 1968 until its decertification in 1981 following an illegal labor strike broken by the Reagan administration; in striking, the union violated 5 U.S.C. (Supp. III 1956) 118p (now 5 U.S.C. § 7311), which prohibits strikes by federal government employees.

Strike action, also called labor strike, labour strike in British English, or simply strike, is a work stoppage caused by the mass refusal of employees to work. A strike usually takes place in response to employee grievances. Strikes became common during the Industrial Revolution, when mass labor became important in factories and mines. As striking became a more common practice, governments were often pushed to act. When government intervention occurred, it was rarely neutral or amicable. Early strikes were often deemed unlawful conspiracies or anti-competitive cartel action and many were subject to massive legal repression by state police, federal military power, and federal courts. Many Western nations legalized striking under certain conditions in the late 19th and early 20th centuries.