untermensche
Contributor
The war was not over slavery. The war was over Union vs disunion.
The south seceded because of slavery. But the military action that followed was about preserving the Union. Freeing the slaves was a consequence of the war, but not the goal of US forces.
While the war was still being fought the North passed the 13th Amendment. Watch "Lincoln". It was not a given the 13th would pass. Many in the North opposed freeing the slaves.
The war allowed a way to make slavery illegal. By excluding the South from the decision.
What it was fought over was the South trying to maintain slavery in a world that was growing more opposed to it everyday.
They jumped the gun seeing the future.
So slavery was mingled into the whole mess and can't be removed from it.