The Dull Knife Fight, or the Battle on the Red Fork, part of the Great Sioux War of 1876, was fought on November 25, 1876, in present-day Johnson County, Wyoming between soldiers and scouts of the United States Army and warriors of the Northern Cheyenne.

After learning of a village of Cheyennes in October, 1876, Crook sent Colonel Ranald S. Mackenzie into the Southern Powder River Country to locate it.

Colonel Mackenzie departed Camp Robinson, Nebraska with nearly 1,000 soldiers in 11 companies of the 2nd, 3rd, 4th, and 5th United States Cavalry Regiments.

[2] Eventually on November 25, 1876, Mackenzie found the camp of Dull Knife and Little Wolf on the Red Fork of the Powder River.

Eleven babies froze to death in the arms of famished mothers..." Finally, the US soldiers recovered articles from the Battle of the Little Bighorn.

[2]: 34–35, 39–40 Dull Knife's followers were left in the freezing November weather without sufficient clothing, and many suffered from frostbite.

After a year of reservation life in which they were decimated by disease and hunger, many—including Dull Knife and his followers—escaped in what became known as the Northern Cheyenne Exodus.

A large number of Dull Knife's band traveled north along the Bighorn Mountains, eventually reaching the upper Tongue River regions.

[6] The Dull Knife Fight ended the Northern Cheyennes' resistance to the United States for all practical purposes.

General Crook telegrammed the War Department, "This will be a terrible blow to the hostiles, as those Cheyennes were not only their bravest warriors but have been the head and front of most all the raids and deviltry committed in this country.

United States Army Expedition from Camp Robinson, Nebraska, October–November, 1876, Late Major General, Colonel Ranald S. Mackenzie, commanding.