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.
First Battle of Fort Fisher The First Battle of Fort Fisher was a naval siege in the American Civil War, when the Union tried to capture the fort guarding Wilmington, North Carolina, the South's last major Atlantic port. Led by Major General Benjamin Butler, it lasted from December 23–27, 1864.