Arkansas in the American Civil War readmitted in July 1866. Arkansas in the American Civil War During the American Civil War, Arkansas was a Confederate state, though it had initially voted to remain in the Union. Following the capture of Fort Sumter in April 1861, Abraham Lincoln called for troops from every Union state to put down the rebellion, and Arkansas and several other states seceded. For the rest of the war, Arkansas played a major role in controlling the vital Mississippi River and neighboring states, including Tennessee and Missouri. It raised 48 infantry regiments, 20 artillery batteries, and over 20 cavalry regiments for the Confederacy,
Siege artillery in the American Civil War is not reported to have been fired . The presence of the Confederate 4.6-inch Brooke rifle in the Federal siege train is unexplained. It was emplaced in Fort Cummings and could presumably have fired ammunition designed for the 4.5-inch siege rifle. It is also confusingly reported as being of English manufacture . Siege artillery in the American Civil War Siege artillery is heavy artillery primarily used in military attacks on fortified positions. At the time of the American Civil War, the U.S. Army classified its artillery into three hundred varied types, depending on the gun's weight and intended use. "Field