Fort Gibson - American Civil War

American Civil War

During the American Civil War, Union troops occasionally occupied the post. During the summer of 1862, Union soldiers repulsed a Confederate invasion of Indian Territory. They left the fort and withdrew to Kansas. In April 1863, Colonel William A. Phillips of the Indian Home Guard (American Civil War) (Union Indian Brigade) reoccupied Fort Gibson and kept it in Union hands throughout the remainder of the war. The Army briefly renamed the post Fort Blunt in honor of Brigadier General James G. Blunt, commander of the Department of Kansas. The fort dominated the junction between the Arkansas River and Texas Road, but Confederates never attacked the fort. Its troops under General Blunt marched southward in July 1863 and won the Battle of Honey Springs, the most important in Indian Territory.

After the American Civil War, the US Army retained Fort Gibson. American soldiers ultimately established enduring peace with the Indian tribes of the southern Plains only after 1870, but forts farther west increasingly took on the duties of securing that peace. For more than 50 years, Fort Gibson had kept peace in its area. The Army transferred most troops elsewhere in 1871, leaving only a detachment responsible for provisions in a quartermaster depot.