Collapse of JCPOA Will Undermine Global Security

Saving Iran’s nuclear deal is absolutely essential because its complete collapse would cause security issues in the Middle East, which are certain to reverberate across the world, a former Iranian diplomat said. 
The nuclear agreement, formally known as the Joint Comprehensive Plan of Action, reached between Iran and the six world powers in 2015, has been on shaky ground since the United States quit the same in May and reimposed sanctions on Tehran.
Iran and other parties have refused to abandon the accord and are doing all in their power to keep it alive, minus the US.