In April 1890 , the Cheyennes assumed a threatening attitude .
Cheyennes ' agent called on the commanding officer of Fort Custer for protection , who sent Major Carrol with Troops B , D and M to the Tongue River Agency , Cheyennes they established Camp Crook .
In April 1890 , the Cheyennes assumed a threatening attitude and their agent called on the commanding officer of Fort Custer for protection , who sent Major Carrol with Troops B , D and M to the Tongue River Agency , where they established Camp Crook .