Flipper, was assigned to the 10th Cavalry Regiment in Fort Sill. In 1877, the first African-American to graduate from West Point, Henry O. The Indians launched the Red River War to protect their territory and their livelihood. The Indians resumed their raids on the borders of Texas and Kansas and used Fort Sill as a sanctuary. The Indians interpreted the passing of the peace policy as a sign of weakness. With the passing of the peace policy Fort Sill soldiers were prohibited from taking action against the Indians. Lawrie Tatum was the first Quaker Indian agent for the Kiowa and Comanche Indians.

President Ulysses Grant passed a peace policy that placed the Southwest Indian tribes under Quaker Indian agents. The first post commander of Fort Sill was Maj. Sheridan later renamed the military post in honor of his close friend at West Point, Brigadier General Joshua W. The military garrison was first called Camp Wichita and was commonly referred to as the Soldier House at Medicine Bluffs by the Indians. The 10th Cavalry consisted of black buffalo soldiers that helped construct various stone buildings that surrounded the old military post. Several troops camped in the surrounding area of the new fort that included the 19th Kansas Volunteers, the 7th Cavalry, and the 10th Cavalry. During his campaigns, he was accompanied by top notch scouts such as Buffalo Bill Cody, Ben Clark and Jack Stilwell. General Sheridans winter campaigns against the hostile Indian tribes helped keep the area peaceful. Sheridan led campaigns against hostile Indians that raided settlements in Kansas and Texas.

Sheridan staked the site of Fort Sill on January 8, 1869.

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