Well, all the historical examples I can conjure did, so seceders should certainly be prepared for it, but I can also see situations where both of the parties felt separation to be in their respective interests, so I don't think a peaceful separation is impossible. (Not talking about this or any tangible case, just the concept of secession/political separation in general)
Oh yes, I agree that is true....peaceful is possible and preferable.
Also, and I’ve been talking about this for a while...with technology...iSeparation or virtual separation is possible.....two different systems....no geographical boundaries needed.....outside the box, but possible...