and he found early success on the battlefield when he bravely served under a dude named Hump in a raid on the Gros Ventres.  
This person's name in his native language was Tashunca-Utico and he found early success on the battlefield when he bravely served under a dude named Hump in a raid on the Gros Ventres.  Early in his military career he was a participant in two events in the Wyoming Territory including the massacre of William J. Fetterman's force and the unsuccessful Wagon Box fight.  At one point, Spotted Tail planned to assassinate him at the next tribal council, and he eventually surrendered after a pursuit by Nelson A. Miles in 1877 following this leader's defeat at Wolf Mountain.  Dying in Fort Robinson after struggling with his guards, FTP, identify this Oglala Sioux leader who joined up with his contemporary Sitting Bull to participate in the Little Big Horn massacre.
This person's name in his native language was Tashunca-Utico
{Crazy Horse} (also accept {Ta-sunko-witko})