According to me it should be...
Introduction
It is based upon consent of individual states as we have seen in the case of Switzerland which is not the part of UNO or America which has yet endorse the formation of international court of criminal justice.
Background
A big picture of evolution of Int.Law in precise form.
Current status of International Law
How the matters relating international arena are being sorted now a days
Different moods of Solving International Issues
Bilateral Treaties
Regional Treaties
Conventions
Vienna Convention etc.
International Bodies
UNO etc
Conclusion
A state is the basic ingredient of the international system of law and international law always require endorsement of a particular state to be implemented.