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,
Commemoration of the American Civil War Commemoration of the American Civil War The commemoration of the American Civil War is based on the memories of the Civil War that Americans have shaped according to their political, social and cultural circumstances and needs, starting with the Gettysburg Address and the dedication of the Gettysburg cemetery in 1863. Confederates, both veterans and women, were especially active in forging the myth of the Lost Cause of the Confederacy. Most of the war dead are buried at Arlington National Cemetery and other national cemeteries near the battle zones. Memorial Day (or "Decoration Day") originated shortly after the American Civil War