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
5th Cavalry Regiment the yellow field on the lower half of the crest. On 9 April 1865, the 5th Cavalry was selected to serve as the Union Honor Guard for the surrender of the Confederate Army of Northern Virginia at Appomattox Courthouse. The Regiment stood by solemnly as it watched its former commander, General Robert E. Lee, surrender to the Union Army. In September 1868, the 5th Cavalry Regiment received its orders and began preparations for duty against hostile Indians in Kansas and Nebraska. In the following years the 5th Cavalry fought many skirmishes and battles against the Sioux, Cheyenne and Arapaho on