The Yavapai Wars, or the Tonto Wars, were a series of armed conflicts between the Yavapai and Tonto tribes against the United States in Arizona. The period began no later than 1861, with the arrival of American settlers on Yavapai and Tonto land. At the time, the Yavapai were considered a band of the Western Apache people due to their close relationship with tribes such as the Tonto and Pinal. The war culminated with the Yavapai's removal from the Camp Verde Reservation to San Carlos on February 27, 1875, an event now known as Exodus Day.