 He was a member of the Mexican Liberal Party (PLM) and fought in the party's military campaigns.In September 1910, "Regeneración" published the stories of three 1908 revolutionary episodes, in which Guerrero described PLM attacks on the settlements of Las Vacas (modern-day Ciudad Acuña, Coahuila), Viesca, Coahuila, and Puerto Palomas, Chihuahua, intended to spark a social revolution across Mexico.The liberal opposition to Díaz's regime finally declared open rebellion on 20 November 1910, under Francisco I. Madero's Plan de San Luis.