Sioux Wars defeated a force of 1,300 Americans under General George Crook. Crook retreated which helped lead to the infamous Battle of Little Big Horn beginning on June 25. Lieutenant Colonel George Custer, commanding a force of over 600 troops, was badly defeated with the loss of over 300 men killed or wounded, including himself. The next major engagement occurred at Slim Buttes on September 9 and 10. While moving toward Deadwood to secure supplies for Crook's command, elements of the 1st Cavalry commander by Capt Anson Mills located and attacked a Sioux village. The Dull Knife Fight, on November 25, and
George Armstrong Custer Virginia on September 13, 1863. In 1864, Custer was awarded another star and brevetted to major general rank. At the conclusion of the Appomattox Campaign, in which he and his troops played a decisive role, Custer was present at General Robert E. Lee's surrender to General Ulysses S. Grant, on April 9, 1865. After the Civil War, Custer remained a major general in the United States Volunteers until they were mustered out in February 1866. He reverted to his permanent rank of captain and was appointed a lieutenant colonel in the 7th Cavalry Regiment in July 1866. He was dispatched