Five relevant German-Russian agreements form the cultural-policy framework. They govern different subjects — and have different durations and termination mechanisms.
Article 62 of the Vienna Convention on the Law of Treaties concerns a fundamental change of circumstances. Under narrow conditions, such a change may be invoked as a ground for terminating or withdrawing from a treaty; paragraph 3 also allows suspension under the same conditions.
This is an extraordinary international-law argument and must be distinguished from the ordinary termination clauses contained in the individual agreements.
Attorney Jens Baganz takes the view that the fundamental changes in German-Russian relations since 2013 could satisfy the requirements of Article 62. He therefore considers both termination and suspension of the Accommodation Agreement legally arguable.
This is a legal position. Whether Article 62 actually applies in this specific case would require separate legal assessment.