doctrine rebus sic stantibus

OBS: rebus sic stantibus : Expression latine signifiant «Les circonstances demeurant les mêmes.» Il arrive qu'une obligation soit contractée avec la condition au moins tacite que les circonstances dans lesquelles elle a été assumée ne changeront pas.
OBS: L'expression «changement fondamental des circonstances» a remplacé «rebus sic stantibus» à l'Art. 62 de la Convention de Vienne sur le droit des traités.

OBS: rebus sic stantibus : Lat. At this point of affairs; in these circumstances.
OBS: Treaties may be discharged as a result of what is traditionally known as the rebus sic stantibus doctrine, although there is a current trend to dispense with the appellation ""rebus sic stantibus"". According to this doctrine, a fundamental change in the state of facts which existed at the time the treaty was concluded may be invoked as a ground for terminating the treaty, or for withdrawing from it.
OBS: The expression ""fundamental change of circumstances"" has been used instead of ""rebus sic stantibus"" in Art. 62 of the Vienna Convention on the Law of Treaties.