The years 1856 to 1858 were particularly vicious and bloody on the Texas frontier, as settlers continued to expand their settlements into the Comanche homeland, the Comancheria. Valuable Indian hunting grounds were plowed under, and grazing ranges for the Comanche horse herds were lost. The
United States Army proved wholly unable to stem the violence. Federal units were being transferred out of the area for reasons that seemed driven more by political than military considerations. At the same time, federal law and numerous treaties forbade incursion by state forces into the federally protected Indian Territories. The U.S. Army was likewise instructed not to attack Indians in the Indian Territories or to permit such attacks. The relationship between the federal government, Texas, and the native tribes was further complicated by a unique situation that arose as a result of
Texas' annexation. The federal government is charged by the
U.S. Constitution to be in charge of Indian affairs and took over that role in Texas after it became a state in 1846, but under the terms of Texas' accession to the Union, the new state retained control over virtually all of public land within its boundaries. In most other new states, the overwhelming majority of publicly owned land belonged to the Federal government as well as sole jurisdiction over Indian affairs, in particular the authority to make treaties guaranteeing reservations for various tribes. However, Texas adamantly refused to contribute public land in the state for Indian reservations, but still expected the federal government to be responsible for the cost and details of Indian affairs. Since federal
Indian agents in Texas believed that Indian land rights were the key to peace on the frontier, little progress towards a peaceful settlement was even attempted on account of the attitude of Texas officials on the question of Indian homelands. As the
Civil War loomed, federal forces were moved off the frontier with greater frequency. These troop movements, including the transfer without replacement of the
2nd Cavalry in Texas, left much of the frontier of the
Great Plains without protection from Indian attacks. Their success against the Spanish, Mexicans, and early Texans led them to believe the tactics that had enabled them to win, including unrelenting raids and thefts against settlements, would continue to be successful. This violence towards settlers cost roughly 17 settler lives per mile for settlement of the Comancheria. ==Recruiting "friendly" Indians==