sentences:  They fought at the Battle of Round Mountain, Battle of Chusto-Talasah, and Battle of Chustenahlah, resulting in 2,000 deaths among the 9,000 loyalists who were leaving.After defeating the Confederacy, the Union required new peace treaties with the Five Civilized Tribes, which had allied with that insurrection.The Treaty of 1866 required the Creek to abolish slavery within their territory and to grant tribal citizenship to those Creek Freedmen who chose to stay in the territory; this citizenship was to include voting rights and shares of annuities and land allotments.