Presidency of Ulysses S. Grant ordered Sheridan to round up the Sioux and put them on the reservation. Sheridan used a strategy of convergence, using Army columns to force the Sioux onto the reservation. On June 25, 1876, one of these columns, led by Colonel George A. Custer met the Sioux at the Battle of Little Big Horn and part of his command was slaughtered. Approximately 253 federal soldiers and civilians were killed compared to 40 Indians. Custer's death and the Battle of Little Big Horn shocked the nation. Sheridan avenged Custer, pacified the northern Plains, and put the defeated Sioux on the reservation. On
George Armstrong Custer had written to Johnson some weeks before seeking such a commission. Custer and his wife stayed with the president during most of the trip. At one point Custer confronted a small group of Ohio men who repeatedly jeered Johnson, saying to them: "I was born two miles and a half from here, but I am ashamed of you." On July 28, 1866, Custer was appointed lieutenant colonel of the newly created 7th Cavalry Regiment, which was headquartered at Fort Riley, Kansas. He served on frontier duty at Fort Riley from October 18 to March 26, and scouted in Kansas and