If a party has materially violated or breached its treaty obligations, the other parties may invoke this breach as grounds for temporarily suspending their obligations to that party under the treaty. A material breach may also be invoked as grounds for permanently terminating the treaty itself.

Answer this question, if possible (if impossible, reply "unanswerable"): What temporary actions can parties of a treaty take in response to a material violation of a party's obligations?
suspending their obligations to that party