Fetterman massacre

Give me 80 men and I can ride through the whole Sioux Nation.
Capt. William Fetterman

In 1866, near an isolated U.S. Army post in the foothills of the Bighorn Mountains, Plains Indians ambushed and killed Captain William J. Fetterman and his entire detachment of eighty men. This Sioux victory would have gone down in history as the greatest defeat ever handed to the frontier army if George Armstrong Custer and the Seventh Cavalry had not gone to their deaths at the Little Bighorn ten years later.