Former US Secretary of Defense Robert Gates addressing the Corps of Cadets in Eisenhower Hall. Gates doesn’t believe the nuclear deal will have a moderating impact on Iranian behavior. Photo: Tommy Gilligan.

Former US defense secretary Robert Gates isn’t optimistic that the landmark July 2015 nuclear deal with Iran will lead the country to halt any of its disruptive policies in the Middle East or its support for terrorist groups.

In an interview with Business Insider, Gates, who spent nearly 27 years in the CIA and was the only cabinet secretary to have served under Barack Obama and George W. Bush, said that he didn’t believe the nuclear deal would have a moderating impact on Iranian behavior or lead Tehran to become a more responsible international actor.

Read full story at Business Insider.