On March 13, 1865 the Confederate Congress approved the use of black troops in combat. This was a last-ditch, desperate attempt by Jefferson Davis to win a war that was all but over by early Spring 1865.
One of the more interesting questions related to blacks serving in the American Civil War is this, did blacks (free or slave) serve in combat roles in the Confederate Army? Unquestionably the historical evidence is strong that some blacks – perhaps several thousand – did serve in the Confederate Army in unofficial, non-combat roles as servants, laborers, teamster, musician, cooks, etc. But the official record is very unsupportive that thousands of blacks served as official soldiers in the ranks of the Southern soldiers’ rosters.
For more read, “Did blacks fight for the Confederacy?”