Protected the Chickasaw people from Plains Indians and non-native intruders

Fort Washita was established in 1842 under Colonel Zachary Taylor as the southwestern-most military post of the United States. Both the Southern Plains Indians to the west, as well as non-native intruders, posed threats to the peace and stability of this region. The soldiers' mission was to protect the recently immigrated Chickasaws as well as the Choctaws and stand guard over the Texas frontier.