What impact did slavery have on the war effort in the south?

Slavery impacted the war effort in the South by decreasing the efficiency of the military in the war.

Explanation:

The military forces in the South had to perform two distinct duties during the course of war. One of which was to fight with the military forces of the North and the other was to keep the slaves under control. This directly affected the efficiency of the military of the South and eventually resulted in their loss.

united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).

it maybe, we dont know. however lucky the lipercon seams guilty