Template:CaliforniaMexicanPresidios

The Mexican War of Independence ended the Spanish rule over California and changed the mission system to a more secular system with decreasing reliance on the church and the mission to provide for the native population. The Spanish Presidios of California were abandoned along with the Missions by the Mexican government starting in 1831 and allowed to deteriorate. The Mexican Government established the Presidio of Sonoma in 1836 as the military headquarters of upper California.