Intellectual Olympiad in International Law - 2026 ongoing

Subject: International Law
Level: IV (I is easiest, XII is hardest)
Category: student
Question language: English
Questions: 15
Example question: Under the Vienna Convention on the Law of Treaties, when may two or more parties modify a multilateral treaty only among themselves? Only when every party to the treaty expressly approves the modification, Whenever the modifying parties consider it politically necessary, Only after the treaty has been suspended for at least one year, When the modification does not affect the rights of other parties and is not incompatible with the treaty’s object and purpose