Just before dawn on May 8, 1911, the Welsh rebel General Caryl ap Rhys Pyrce requested the surrender of the Mexican Army commander Colonel Guerrero.

With the wounding of their commander, and mounting casualties, Colonel Guerrero ordered a retreat and fled Tijuana to California with the bulk of his force, some others escaped south down the coast to Ensenada.

A total of 12 federal troops were killed, around ten others were wounded and most of the survivors were interned by the United States Army when they entered California territory.

At the same time General Pyrce took Tijuana, rebel forces were fighting and winning the major Second Battle of Ciudad Juarez on the Texas border.

The Ciudad Juarez battle along with the Zapatista victories in central Mexico, quickly was leaving the federal government of Porfirio Diaz into chaos.