In August 1865, the 4th Cavalry was sent to Texas. At various times during the next thirteen years, units from its twelve companies occupied military posts between the Rio Grande and Jacksboro, and between San Antonio and San Angelo. {See Fifth Military District for reports of the 4th Cavalry in Texas between 1867-1869}. Before 1871, the operations of the regiment were limited to guarding the mail and settlements against Indians and to desultory attempts to overtake bands of Indian raiders. The regiment's commander during this period, Col. Lawrence Pike Graham, never had to lead a major campaign, and none of the regiment's fourteen skirmishes with Indians was of major significance.