By 1910, Porfirio Díaz had ruled Mexico for decades through elections that kept him in power and a political system that limited dissent. Rapid economic growth and foreign investment benefited elites, while many rural communities and workers remained poor and faced land loss and repression. These tensions helped set the stage for a national revolt.
After escaping imprisonment following the disputed 1910 election, Francisco I. Madero published the Plan of San Luis Potosí. It rejected Díaz’s reelection as fraudulent and called for an uprising to begin on November 20, 1910. The plan gave a political focus to anti-Díaz resistance and is commonly treated as the revolution’s starting signal.
Fighting broke out as rebels answered Madero’s call to take up arms against Díaz’s government. Revolts spread, especially in northern Mexico and in Morelos, creating pressure that Díaz’s forces struggled to contain. This shift from political protest to armed conflict made compromise increasingly difficult.
Representatives of Díaz and Madero signed the Treaty of Ciudad Juárez, which stopped major fighting between their forces. The agreement set up Díaz’s resignation and an interim presidency to organize elections. While it ended the initial anti-Díaz war, it did not solve deeper issues like land reform, which soon fueled new conflict.
Following the treaty, Porfirio Díaz resigned the presidency and left Mexico. His departure ended the Porfiriato political era and opened the door for new leadership. But removing Díaz did not unify the revolutionary coalition, and disagreements over goals quickly surfaced.
Emiliano Zapata and allies issued the Plan of Ayala, denouncing President Madero for failing to deliver meaningful land reform. The plan demanded the return of village lands and redistribution of large estates. It helped define the revolution’s agrarian (land-focused) wing and deepened the split among former anti-Díaz allies.
A military uprising in Mexico City triggered about ten days of intense fighting known as the Decena Trágica (Ten Tragic Days). President Madero and Vice President José María Pino Suárez were arrested as the coup succeeded. The violence marked a turning point: the revolution shifted into a struggle against a new dictatorship rather than just against Díaz’s old regime.
General Victoriano Huerta took power during the coup and ruled as a dictator. His regime unified many revolutionary factions that had been divided under Madero, because they now shared a common enemy. Opposition to Huerta quickly became the central goal of the revolution’s next phase.
Venustiano Carranza proclaimed the Plan of Guadalupe, rejecting Huerta’s government as unconstitutional and calling for armed resistance under the Constitutionalist movement. The plan helped organize anti-Huerta forces and gave them a clear political program centered on restoring constitutional order. It also elevated Carranza as a key leader of the revolution.
After sustained defeats and growing isolation, Victoriano Huerta resigned the presidency. His fall ended one dictatorship but did not bring peace, because revolutionary allies soon fought over who should govern and what reforms should come next. The conflict moved into a civil war among revolutionaries.
The Treaties of Teoloyucan formalized the surrender and disbanding of Huerta’s old Federal Army. This removed a major national military institution and left revolutionary armies as the strongest armed forces in the country. With the old army gone, competition between factions like Carranza’s Constitutionalists and Villa’s and Zapata’s forces intensified.
Revolutionary leaders and delegates met in the Convention of Aguascalientes to try to create a single post-Huerta government. The convention instead highlighted deep disagreements—especially over authority and reforms—and it helped trigger open war between the Constitutionalists and the Conventionist alliance associated with Pancho Villa and Emiliano Zapata. The revolution entered one of its bloodiest internal phases.
At Celaya, Constitutionalist general Álvaro Obregón defeated Pancho Villa’s forces in a major series of engagements. The outcome weakened Villa’s military power and strengthened Carranza’s position. This shift made it more likely that Carranza’s faction would shape Mexico’s next national government and constitution.
Pancho Villa’s forces attacked Columbus, New Mexico, killing U.S. residents and soldiers and damaging the town. The raid internationalized the conflict and prompted the United States to launch a military pursuit into northern Mexico. It also put additional pressure on Carranza’s government to manage border security and foreign relations during ongoing civil war.
A constituent congress produced a new national constitution that incorporated major revolutionary demands into law, including stronger labor rights and rules about land and natural resources. The constitution aimed to rebuild political order after years of upheaval while addressing social grievances that fueled the war. It became the foundation of Mexico’s modern legal system, even though many reforms took years to enforce fully.
Venustiano Carranza took office as constitutional president under the new 1917 framework. His government sought to consolidate authority, but major revolutionary leaders remained in armed opposition in parts of the country. The gap between constitutional promises and political realities continued to drive conflict.
Emiliano Zapata was killed in an ambush in Morelos. His death weakened the Zapatista movement’s national leadership, though his ideas about land reform remained influential. The assassination signaled that Carranza’s government was increasingly willing to use force to eliminate remaining rivals.
Sonoran leaders, including Álvaro Obregón, issued the Plan of Agua Prieta to reject Carranza’s government and oppose his attempt to control the presidential succession. The plan triggered a successful rebellion that broke Carranza’s remaining support. This uprising is widely treated as a decisive final turn in the revolutionary cycle of governments and civil wars.
As rebels advanced, Carranza fled Mexico City but was betrayed and killed in the mountains of Puebla. His death ended the Carranza government and cleared the way for new leadership aligned with the victorious Sonoran coalition. It also marked a practical endpoint to the revolution’s most intense armed struggles over national power.
Adolfo de la Huerta took office as interim president, helping stabilize the transition after Carranza’s fall. His short administration aimed to restore national governance and prepare for a new constitutional leadership. The shift toward a recognized central government helped close the main revolutionary period and set conditions for the post-revolutionary state.
Mexican Revolution (1910–1920)