section_path: History/Mexican Revolution (1910–1920)
section_name: Mexican Revolution (1910–1920)
paragraph_text: Mexican Revolution (1910–1920)
  
  The Mexican Revolution was a decade-long transformational conflict. It began with scattered uprisings against President Díaz after the fraudulent 1910 election, his resignation in May 1911, demobilization of rebel forces and an interim presidency of a member of the old guard, and the democratic election of a rich, civilian landowner, Francisco I. Madero in fall 1911. In February 1913, a military coup d'état overthrew Madero's government, with the support of the U.S., resulting in Madero's murder by agents of Federal Army General Victoriano Huerta. A coalition of anti-Huerta forces in the North, the Constitutional Army led by Governor of Coahuila Venustiano Carranza, and a peasant army in the South under Emiliano Zapata defeated the Federal Army.
  
  In 1914, that army was dissolved as an institution, leaving only revolutionary forces. Following the revolutionaries' victory against Huerta, they sought to broker a peaceful political solution, but the coalition splintered, plunging Mexico again into a civil war. Constitutionalist general Pancho Villa, commander of the Division of the North, broke with Carranza and allied with Zapata. Carranza's best general Alvaro Obregón defeated Villa, his former comrade-in-arms in the Battle of Celaya in 1915, and Villa's northern forces melted away. Zapata's forces in the south reverted to guerrilla warfare. Carranza became the de facto head of Mexico, and the U.S. recognized his government.
  
  In 1916, the winners met at a constitutional convention to draft the Constitution of 1917, which was ratified in February 1917. The Constitution empowered the government to expropriate resources including land, gave rights to labor, and strengthened anticlerical provisions of the 1857 Constitution. With amendments, it remains the governing document of Mexico. It is estimated that the war killed 900,000 of the 1910 population of 15 million. Although often viewed as an internal conflict, the revolution had significant international elements. During the Revolution, the U.S. Republican administration of Taft supported the Huerta coup against Madero, but when Democrat Woodrow Wilson was inaugurated as president in March 1913, Wilson refused to recognize Huerta's regime and allowed arms sales to the Constitutionalists. Wilson ordered troops to occupy the strategic port of Veracruz in 1914, which was lifted.
  
  After Pancho Villa was defeated by revolutionary forces in 1915, he led an incursion raid into Columbus, New Mexico, prompting the U.S. to send 10,000 troops led by General John J. Pershing in an unsuccessful attempt to capture Villa. Carranza pushed back against U.S. troops being in northern Mexico. The expeditionary forces withdrew as the U.S. entered World War I. Germany attempted to get Mexico to side with it, sending a coded telegram in 1917 to incite war between the U.S. and Mexico, with Mexico to regain the territory it lost in the Mexican-American War. Mexico remained neutral in the conflict.
  
  Consolidating power, President Carranza had peasant leader Emiliano Zapata assassinated in 1919. Carranza had gained the support of the peasantry during the Revolution, but once in power, he did little to institute land reform, which had motivated many to fight in the Revolution. Carranza returned some confiscated land to their original owners. President Carranza's best general, Obregón, served briefly in his administration but returned to his home state of Sonora to position himself to run in the 1920 presidential election. Since Carranza could not run for re-election, he chose a civilian to succeed him, intending to remain the power behind the presidency. Obregón and two other Sonoran revolutionary generals drew up the Plan of Agua Prieta, overthrowing Carranza, who died fleeing Mexico City in 1920. General Adolfo de la Huerta became interim president, followed by the election of General Álvaro Obregón.