The Presidio was seized by the U.S. Military in 1846, officially opened in 1848, and became home to several Army headquarters and units, the last being the United States 6th Army.
The Presidio was seized by the U.S. Military in 1846, at the start of the Mexican-American war. It officially opened in 1848, and became home to several Army headquarters and units, the last being the United States 6th Army.