The Modoc War begins with the Battle of Lost River.

The Modoc War, or the Modoc Campaign, was an armed conflict between the Native American Modoc people and the United States Army in northeastern California and southeastern Oregon between 1872 and 1873. The fighting was in response to the California genocide, when agents of the United States government assisted by private citizens began the systematic killing of thousands of indigenous peoples of California in the mid-19th century. State authorities and private militias encouraged and carried out violence against the Modoc and other Indigenous peoples.