The Sioux on the reservations began to leave, and join Sitting Bull. They felt that Red Cloud's heart was with them. He had notified the United States that it must keep the white men out of Sioux country. The United States also was alarmed. The Sioux seemed to be using the reservation as a sort of supply depot; they got provisions and clothing there, and took them to the hunting grounds. General Alfred H. Terry, who commanded the Military Department of Dakota, sent scouts to inform Sitting Bull that unless he came in, with all his people, out of the Big Horn Valley and the Powder River country, before a certain time, troops would bring him out. There would be war. Sitting Bull answered: "When you come for me you need bring no guides. You will easily find me. I shall be right here. I shall not run away." In February, this 1876, the United States started to go after him, but the cold weather delayed the plans. Then, in May, matters were all arranged. There were to be three columns, to surround the unruly Sitting Bull. General George Crook, the famous Indian fighter, was to march into the Big Horn country from the south with thirteen hundred men; Colonel John Gibbon was to march in from the west with four hundred men; General Terry's infantry, and General George A. Custer's Seventh Cavalry, one thousand men, were to march in from the east. They were to meet at the Powder River, and capture Sitting Bull. A great many Indians had rallied to Sitting Bull and his comrade chief Crazy Horse--an Oglala who commanded the Cheyennes. Sitting Bull was making medicine. He told the warriors that in a short time there would be a big fight with the soldiers on the Big Horn, and that the soldiers would be defeated. Crazy Horse struck the enemy first. He met General Crook's column and stopped it. Then he joined Sitting Bull again. Now in June the Sitting Bull camp upon the Little Big Horn River in the Big Horn Valley of southern Montana was three miles long and contained ten thousand people. It had twenty-five hundred good fighters. It was not afraid, but its people were here to hunt and dance and have a good time. Although they listened to the prophecy of Sitting Bull, they really did not expect that the soldiers would find them. Chief Gall, a fine man, of the Hunkpapas, was head war chief; his aide was Crow King. Crazy Horse commanded the Northern Cheyennes. The head of the Miniconjou Sioux was Lame Deer. Big Road commanded the Oglalas. There were other Sioux also--some Brules, and some Without Bows; and a few Blackfeet and Arapahos. General Custer, whose regular rank was lieutenant-colonel, found the village with his Seventh Cavalry. He had left General Terry, in order to scout across country; and when his scouts told him that the Sioux camp was before him, he rode on to the attack.