Citizens' Alliances were state and local anti-trade union organizations prominent in the United States of America during the first decade of the 20th century. The Citizen's Alliances were closely related to employers' associations but allowed participation of a broad range of sympathetic citizens in addition to those employers apt to be affected by strikes. Originating in the American state of Ohio as the "Modern Order of Bees," the Citizens' Alliance movement spread westwards, playing a particularly important role in labor relations in the states of Colorado and California. Citizens' Alliance groups often worked in tandem with smaller but better financed employers' organizations interested in establishing or maintaining open shop labor conditions, including the Mine Owners' Associations (MOA) or the National Association of Manufacturers (NAM).