President Trump’s team is working to “checkmate Iran” through enhanced coordination with Saudi Arabia and other U.S. allies, according to Defense Secretary Jim Mattis.

“What we’re seeing is the nations in the region and others elsewhere trying to checkmate Iran and the amount of disruption, the amount of instability they can cause,” Mattis told reporters in Riyadh following a meeting with Saudi Arabian Ministry of Defense. “It’s got to be ended.”