Montana in the American Civil War Montana in the American Civil War The area that eventually became the U.S. state of Montana played little direct role in the American Civil War. The closest the Confederate States Army ever came to the area was New Mexico and eastern Kansas, each over a thousand miles away. There was not even an organized territory using "Montana" until the Montana Territory was created on May 26, 1864, three years after the Battle of Fort Sumter. In 1861, the area was divided between the Dakota Territory and the Washington Territory, and in 1863, it was part of the Idaho Territory. Nevertheless,
Cincinnati in the American Civil War Cincinnati in the American Civil War During the American Civil War, the Ohio River port city of Cincinnati, Ohio, played a key role as a major source of supplies and troops for the Union Army. It also served as the headquarters for much of the war for the Department of the Ohio, which was charged with the defense of the region, as well as directing the army's offensives into Kentucky and Tennessee. Antebellum Cincinnati played a large role in the abolitionist movement, partially due to its location as a major city in the free state of Ohio directly across the