Landmark case · Public International Law · Semester 4

Gabčíkovo-Nagymaros Project (Hungary/Slovakia)

ICJ Reports 1997, p. 7 · International Court of Justice

Necessity and supervening impossibility are strictly construed; a material breach does not automatically dissolve a treaty without the VCLT process.

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Related sections:

Vienna Convention on the Law of Treaties, 1969, 26 — Pacta sunt servanda
Vienna Convention on the Law of Treaties, 1969, 31–32 — General rule and supplementary means of interpretation
Vienna Convention on the Law of Treaties, 1969, 52–53 — Coercion of a State; treaties conflicting with jus cogens
Vienna Convention on the Law of Treaties, 1969, 60 — Termination or suspension for material breach