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Max Planck Encyclopedia of Public International Law [MPEPIL]

Promise

Eric Suy, Nicolas Angelet

From: Oxford Public International Law (http://opil.ouplaw.com). (c) Oxford University Press, 2021. All Rights Reserved.date: 24 January 2021

Subject(s):
Treaties, interpretation — Vienna Convention on the Law of Treaties — Treaties, invalidity, termination, suspension, withdrawal — Treaties, binding force — State practice — Unilateral acts — Codification

Published under the auspices of the Max Planck Institute for Comparative Public Law and International Law under the direction of Professor Anne Peters (2021–) and Professor Rüdiger Wolfrum (2004–2020). 

1 In international law, a promise is an unequivocal statement formulated, either orally or in writing, by a subject of international law (Subjects of International Law), typically a State or an international organization and addressed, to one or more other subjects of international law or erga omnes, with the intention of making a legally binding commitment.2 Promises may be made in the context of the conclusion of a negotiated agreement. In this framework, a promise is to be distinguished from an offer, which is conditional in that it becomes finally binding for...
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