U.S. Secretary of Defense Ash Carter gestures during a news conference during a NATO Defence Ministers meeting at the Alliance’s headquarters in Brussels, February 11, 2016.

U.S. Defense Secretary Ash Carter said on Friday he expected Saudi Arabia and the United Arab Emirates to provide special operations forces to help Syrian opposition fighters battling the Islamic State of Iraq and Syria (ISIS) group, including to retake the city of Raqqa.

“We’re going to try to give opportunities and power to … particularly Sunni Arabs in Syria who want to re-seize their territory back from ISIL, especially Raqqa,” Carter said after defense talks in Brussels.

Carter, who met with officials from UAE on Friday, said it had also promised to resume participating in the U.S.-led air campaign against ISIS.

He received a similar assurance from Saudi Arabia on Thursday.