You need to check your history. 1861-1865, the CSA was a sovereign nation, parallel in most respects to the USA. We had our own President and legislature. Just because YOU deny it does not prevent it from being an historical fact.
Do you recognize Taiwan as a sovereign nation? I do. The US does. Same thing.
The CSA was conquered and absorbed into the USA.
Northern states had slaves until well after the War of Northern Aggression. The Emancipation Proclamation did nothing.
You had everything except recognition of your sovereignity by the rest of the world. As far as they were concerned the confederacy was a rebellious part of the U.S., nothing more and nothing less.
Do you recognize Taiwan as a sovereign nation? I do. The US does. Same thing.
Put nobody recognized the confederacy as sovereign. Nobody.
Northern states had slaves until well after the War of Northern Aggression. The Emancipation Proclamation did nothing.
I'm not sure why this is important. The rebellion was not about freeing the slaves.