Carranza sends troops to the State of Sonora, the government of which states that its sovereignty has been attacked. Sonora breaks with the federal government and names General Plutarco Elías Calles head of the armed forces of the state. Sonoran troops invade Sinaloa and occupy the state capital of Culiacán on 17 April 1920.

The government of the state of Guerrero repudiates the federal government and makes common cause with insurgent Sonora.

The Plan de Agua Prieta is issued repudiating Carranza as president. Among the insurgent generals are Álvaro Obregón and Pablo González.

As the revolution advances toward the capital, Carranza, accompanied by his cabinet, leaves by railroad toward Veracruz.

Revolutionary forces under the command of Álvaro Obregón and Benjamín Hill occupy Mexico City.

The Carranza entourage and revolutionary troops fight at the railroad station of San Marcos. Carranza’s troops are defeated at the railroad station of Rinconada on 13 May 1920.

Carranza, who has fled into the mountains with some of his supporters, is killed at Tlaxcalantongo, Puebla.