Which of the serious defeats for the Union came first in the American Civil War: the Battle of Chickamauga or the Battle of Fredericksburg?
Battle of Chickamauga The Battle of Chickamauga, fought on September 18–20, 1863 between Union and Confederate forces in the American Civil War, marked the end of a Union offensive in southeastern Tennessee and northwestern Georgia — the Chickamauga Campaign. It was the first major battle of the war fought in Georgia, the most significant Union defeat in the Western Theater, and involved the second-highest number of casualties after the Battle of Gettysburg.
Second Battle of Auburn The Second Battle of Auburn was fought on October 14, 1863, in Fauquier County, Virginia, between Union and Confederate forces in the American Civil War. Confederate forces led by Lt. Gen. Richard S. Ewell led a sortie to extricate Maj. Gen. J.E.B. Stuart's cavalry command, trapped between two Union columns and clashed with the rearguard of the Federal II Corps under Brig. Gen. Gouverneur K. Warren. Stuart was successfully extricated but the Federal wagon train avoided Confederate capture in the inconclusive fight.