The Conquest of California, also known as the Conquest of Alta California or the California Campaign, was a military campaign during the Mexican–American War carried out by the United States in Alta C
Battle of Río San Gabriel
General Mariano Guadalupe Vallejo reviewing his troops in Sonoma, 1846
The Bear Flag of California, first raised during the Bear Flag Revolt
The Capture of Yerba Buena was an engagement during the Mexican–American War, during which the U.S. Navy captured and occupied the town of Yerba Buena, California, without firing a shot.
View of Yerba Buena at the time of the town's capture by American forces. Lithograph by Edward Bosqui Co, ca. 1884.