The situation was bleak for the Confederates in the spring of 1865. The Yankees had captured large swaths of Southern territory, General William T. Sherman’s Union army was tearing through the Carolinas, and General Robert E. Lee was trying valiantly to hold the Confederate capital of Richmond, Virginia,against General Ulysses S. Grant’s growing force. Lee and Confederate President Jefferson Davis had only two options. One was for Lee to unite with General Joseph Johnston’s army in the Carolinas and use the combined force to take on Sherman and Grant one at a time. The other option was to arm slaves, the last source of fresh manpower in the Confederacy.
I hope this helps have a nice day :)