September 19th 1863, Battles of Chickamauga. The forces of the Union and Confédérés meet on the border Tennessee - Georgia, close to Chickamauga Creek. After the battle, the forces of the Union are withdrawn with Chattanooga, and Confédérés keeps the control of the battle field.

The Bataille of Chickamauga , which was held from September 18th to 20th 1863, marks the end of the offensive of the Union, in the south of Tennessee and the North-West of Georgia, called Campagne of Ckickamauga . This battle is the most important defeat of the Union in the west during the American Civil War.