Fremont's Third Expedition and the American Conquest of California

John Charles Fremont played an important, but often confused role in the American conquest of California.  Be it in his unofficial US military support of a rebellion against a govermnet he wasn't aware the US was at war wtih, or his leading of a Battalion in the Navy despite being an officer of the Army, or his controversial tenure as military governor of California, there is very little about his actions in California which is not confused by contradictory or biased information. 

While this episode is perhaps the most controversial of Fremont's life, it was not the start nor the end of his importance to the United States, and it grew his fame and fortune despite what can be seen as a very negative direct outcome for the man.