There have been multiple forts named Fort Defiance throughout history, so the command may vary based on the specific time period and location. However, one notable Fort Defiance was located in Arizona during the mid-19th century and was under the command of the United States Army during the Apache Wars. Some of the commanders during this time period include Colonel Benjamin L.E. Bonneville, Colonel Ethan Allen Hitchcock, Major Thomas T. Thornburgh, and Captain John G. Bourke.
