George Stoneman Jr. was a United States Army cavalry officer and politician who served as the fifteenth Governor of California from 1883 to 1887.

The Yuma War was the name given to a series of United States military operations conducted in southern California and what is today southwestern Arizona from 1850 to 1853. The Quechan were the primary opponent of the United States Army, though engagements were fought between the Americans and other native groups in the region.