Predict what happens when regional boundaries are
contested, overlapping, and/or transitional.

If the issue is not resolved using negotiations and dialogue, it may result in a cold war. The possibility of this escalating from a cold war to a full-blown war is very likely.

Explanation:

The solution is to promote and deploy the use of moral suasion based on international diplomacy and negotiations to resolve such an issue.

Cheers!

answer at the divergent plate boundary in the middle of the ocean;