If no concrete progress is made on the nuclear deal by the end of August at the latest, the European trio (Great Britain, France, Germany) will activate the "snapback" mechanism against Iran, said French Foreign Minister Jean-Noël Barrot, APA reports.
Note that the "snapback" mechanism is a mechanism that allows the European trio (Britain, Germany, and France) to impose sanctions against Tehran if Iran fails to comply with its obligations under the 2015 nuclear deal.