The Battle of Chickamauga is remembered for being both the largest battle ever fought in Georgia and for being one of the bloodiest battles of the Civil War. Option C is correct.
The Battle of Chickamauga, fought on September 18 – 20, 1863, between U.S. and Confederate forces in the American Civil War, caused the culmination of a Union offensive in southeastern Tennessee and northwestern Georgia.
It was the first most significant battle of the war fought in Georgia, as well as the major Union defeat in the Western Theater.
