Mexican Revolution, (1910–20), a long and bloody struggle among several factions in constantly shifting alliances which resulted ultimately in the end of the 30-year dictatorship in Mexico and the establishment of a constitutional republic. The revolution began against a background of widespread dissatisfaction with the elitist and oligarchical policies of Porfirio Díaz that favoured wealthy landowners and industrialists. When Díaz in 1908 said that he welcomed the democratization of Mexican political life and appeared ambivalent about running for his seventh reelection as president in 1910, Francisco Madero emerged as the leader of the Antireeleccionistas and announced his candidacy. Díaz
