California Battalion

California Battalion
California Battalion
	Battalion Flag
Active	June 1846 – May 1847
Disbanded	May 31, 1847
Country	California Republic
Allegiance	California Republic (until July 1846) ; United States (after July 1846)
Type	Mounted Infantry
Size	Battalion
Garrison/HQ	Sonoma, California
Nickname	Fremont's Battalion
Engagements	Bear Flag Revolt Capture of Sonoma (1846); Battle of Olómpali (1846); Skirmish at San Rafael (1846); ; Mexican-American War Siege of Los Angeles (1846); Battle of San Pasqual (1846); Battle of Natividad (1846); Battle of Rio San Gabriel (1847); Battle of La Mesa (1847); Capitulation of Cahuenga (1847); ;
Commanders
Notable; commanders	William B. Ide; John C. Frémont

The California Battalion (also called the first California Volunteer Militia and U.S. Mounted Rifles) was formed during the Mexican–American War (1846–1848) in present-day California, United States. It was led by U.S. Army Brevet Lieutenant Colonel John C. Frémont and composed of his cartographers, scouts and hunters and the Rebel Californian volunteer militia formed during the Bear Flag Revolt. The battalion's formation was officially authorized by Commodore Robert F. Stockton, commanding officer of the U.S. Navy Pacific Squadron.