Article III requires that controversies between the states, or between a state and the federal government would be resolved by law, with the supreme court as original jurisdiction.
The various states agreed to that when they agreed to the constitution. Therefore they pretense at secession and war to support secession was unconstitutional, particularly when they pretended that secession and war was their selected method of resolving a disagreement with the federal government.
The various states agreed to that when they agreed to the constitution. Therefore they pretense at secession and war to support secession was unconstitutional, particularly when they pretended that secession and war was their selected method of resolving a disagreement with the federal government.Indeed... The states were most definitely NOT signing on to the new constitution without an exit, hence they agree to the compact bound only by VOLUNTARY ACT. Your comment is pure assumption of which I find no such language in Article III or any support in historical debate or founding documents that backs up what you said.