Battle of Slim Buttes Battle of Slim Buttes The Battle of Slim Buttes was fought on September 9 and 10, 1876, in the Great Sioux Reservation in the Dakota Territory, between the United States Army and the Sioux. The Battle of Slim Buttes was the first U.S. Army victory of the Great Sioux War of 1876 after George Armstrong Custer's defeat at the Battle of Little Bighorn on June 25 and 26, 1876. Brigadier General George Crook, one of the U.S. Army's ablest Indian fighters, led the "Horsemeat March," one of the most grueling military expeditions in U.S. history, destroying Oglala Chief American Horse's
Battle of the Little Bighorn how much. By dividing his forces, Custer could have caused the defeat of the entire column, had it not been for Benteen's and Reno's linking up to make a desperate yet successful stand on the bluff above the southern end of the camp. The historian James Donovan believed that Custer's dividing his force into four smaller detachments (including the pack train) can be attributed to his inadequate reconnaissance; he also ignored the warnings of his Crow scouts and Charley Reynolds. By the time the battle began, Custer had already divided his forces into three battalions of differing sizes, of which