Chicano/a and Mexican labor organizers played an active role in notable labor strikes since the early 20th century including the Oxnard strike of 1903, Pacific Electric Railway strike of 1903, 1919 Streetcar Strike of Los Angeles, Cantaloupe strike of 1928, California agricultural strikes (1931–41), and the Ventura County agricultural strike of 1941, endured mass deportations as a form of strikebreaking in the Bisbee Deportation of 1917 and Mexican Repatriation (1929–36), and experienced tensions with one another during the Bracero program (1942–64). Although organizing laborers were harassed, sabotaged, and repressed, sometimes through war-like tactics from capitalist owners who engaged in coervice labor relations and collaborated with and received support from local police and community organizations, Chicano/a and Mexican workers, particularly in agriculture, have been engaged in widespread unionization activities since the 1930s.