Learn California.org
Home Visit the Students section Visit the Teachers section Visit the Research California section Visit the Sitemap
Keyword Search

Conquest of California

US Ambitions on California

The Status of Mexican California

Diplomatic Approaches

The Onset of War

The Bear Flag Revolt

The Naval Conquest of California

The Revolt of the Californios

The Arrival of Kearny

The Defeat of the Californios

The Conclusion of the War and the Theaty of Guadelupe Hidalgo


Primary Source Material



Go To California History

Go To Research California

In 1845, California was a department of the Mexican Republic. However, Mexico’s neighbor to the north, pushing its frontier line ever westward, considered the Pacific coast the natural goal of American expansionism. When American territorial ambitions could not be peacefully reconciled with aloof Mexican nationalism, the result was the Mexican–American War, in which the United States conquered California.

Click here to read an in depth account of the American acquisition of California.

Copyright ©2000-2009 LearnCalifornia.org. All rights reserved.