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ARTICLE-60: Termination or suspension of the operation of a treaty as a consequence of its breach     [go to this ARTICLE]
... (c) any party other than the defaulting State to invoke the breach as a ground for suspending the operation of the treaty in whole or in part with respect to itself if the treaty is of such a character that a material breach of its provisions by one party radically changes the position of every party with respect to the further performance of its obligations under the treaty. ...


ARTICLE-62: Fundamental change of circumstances     [go to this ARTICLE]
... Fundamental change of circumstances ...
... 1. A fundamental change of circumstances which has occurred with regard to those existing at the time of the conclusion of a treaty, and which was not foreseen by the parties, may not be invoked as a ground for terminating or withdrawing from the treaty unless: ...
... (b) the effect of the change is radically to transform the extent of obligations still to be performed under the treaty. ...
... 2. A fundamental change of circumstances may not be invoked as a ground for terminating or withdrawing from a treaty: ...
... (b) if the fundamental change is the result of a breach by the party invoking it either of an obligation under the treaty or of any other international obligation owed to any other party to the treaty. ...
... 3. If, under the foregoing paragraphs, a party may invoke a fundamental change of circumstances as a ground for terminating or withdrawing from a treaty it may also invoke the change as a ground for suspending the operation of the treaty. ...
... 3. If, under the foregoing paragraphs, a party may invoke a fundamental change of circumstances as a ground for terminating or withdrawing from a treaty it may also invoke the change as a ground for suspending the operation of the treaty. ...