[3] The battle was a victory for the United States Army under Commodore Robert F. Stockton and General Stephen Watts Kearny.

[1]: 192  They encountered José María Flores' 300-strong force of Californio militia, including artillery,[1]: 192  near where the city of Vernon now stands, about four miles south of Los Angeles.

[1]: 192  After fifteen minutes, Stockton's fire drove the Californian artillery from effective range.

[1]: 192 The battle was the last armed resistance to the American conquest of California, and General José María Flores returned to Mexico afterward.

The conquest and annexation of Alta California was settled with the signing of the Treaty of Cahuenga by U.S. Army Lieutenant-Colonel John C. Frémont and Mexican General Andrés Pico on January 13, 1847.