ORIGINAL: GreyshaftTrue again... while they are part of the Union they are obligated to follow those laws. I do not defend the illegal actions of the individual states prior to their separate ordinances of secession. Classifying the legality of the events after secession is a whole 'nother thread. eg what process that would be involved in peacefully handing back land in the southern states that had previously been ceded to Federal authority? Would compensation be required?Yes, North Carolina was and still is a sovereign state, not a nation. They are obligated to follow Federal laws.
Since it never has been done, I can only speculate. The U.S. Supreme Court rule a state may not unilateral secede. That seems to mean they just can't decide to leave and go.
The more appropriate way seems to just reverse the process. First the population of the state would have to vote to leave the Union. That process had been completed at one point or another in all of the Southern states. Since Congress had to vote to admit a state into the Union, it would seem appropriate that a similar vote would be required if they wanted to leave.
One can only speculate on how that would be received in the North. Some might have been content to let them go. Others might have resisted. This speculative process would have been easier on the first state to try it, because the vote in Congress would have required a simple major. For each Southern state to go, it would have been that much more difficult to achieve a majority.
Compensation? Who knows, but offering compensation might have made Northern states more respective to the idea. They might feel they are getting rid of a burdensome state and getting paid in the process.
Oh well, that's one process we could "what if" to death.