A trade union or labor union, often simply referred to as a union, is an organization of workers whose purpose is to maintain or improve the conditions of their employment, such as attaining better wa
Garment workers on strike, New York City, c. 1913
Poster issued by the London Trades Council, advertising a demonstration held on 2 June 1873
Trade union demonstrators held at bay by soldiers during the 1912 Lawrence textile strike in Lawrence, Massachusetts
Cesar Chavez speaking at a 1974 United Farm Workers rally in Delano, California. The UFW during Chavez's tenure was committed to restricting immigration.
Union busting is a range of activities undertaken to disrupt or weaken the power of trade unions or their attempts to grow their membership in a workplace.
Pinkerton guards escort strikebreakers in Buchtel, Ohio, 1884.