Mr. Smith calculates that between 60,000 and 93,000 blacks served the Confederacy in some capacity. Many knew Lincoln had little love for enslaved blacks and didn't wage war against the South for their benefit. It didn't apply tho slaves in West Virginia and areas and states not in rebellion. Like Gen. Ulysses Grant's slaves, they had to wait for the 13th Amendment. They came together in 1787, as principals, to create a federal government, as their agent, giving it specific delegated authority - specified in our Constitution.
Principals always retain the right to fire their agent.
The South acted on that right when it seceded. Its firing on Fort Sumter, federal property, gave Lincoln the pretext needed for the war. The war between the states, through force of arms, settled the question of secession, en- abling the federal government to run roughshod over states' rights specified by the Constitution's 10th Amendment. I'd like to see them erect a statue of one of the thousands of black Confederate soldiers on Richmond, Va.'s Monument Avenue.