 Battles included the Battle of Seven Pines, Seven Days Battle, Battle of South Mountain, Battle of Sharpsburg, Battle of Fredericksburg, Battle of Gettysburg, and the Battle of the Wilderness.They later fought with the Army of Tennessee at Chickamauga and during the Knoxville Campaign, as well as with Longstreet at Suffolk.Of the estimated 5,353 men who enlisted in the three Texas and one Arkansas regiments, only 617 remained to surrender on April 9, 1865, at Appomattox Court House in Virginia.