The Battle of Carlisle was an American Civil War skirmish [1] in Pennsylvania on the same day as the Battle of Gettysburg, First Day. Stuart's Confederate cavalry briefly engaged Union militia under Maj. Gen. William F. "Baldy" Smith at Carlisle and set fire to the Carlisle Barracks. Stuart's cavalry withdrew and arrived at the Battle of Gettysburg, Second Day, to the annoyance and concern of Gen. Robert E.