I am supportive of diplomatice interactions but we should merely include the necessary powers to form treaties, conduct foreign policy, make war etc etc in the Constitution. The nature and content of the relationship should be part of the gameplay, hence its appeal. Deciding it here, would essentially make the decision and therefore remove all the positive aspects of it as potentially being a gameplay issue.
Agreed. In general, I'm not a fan of including every detail of governance in the Constitution, anyways.