Counter-ISIL operations aim to isolate Raqqa
Marine Corps Gen. Joseph F. Dunford Jr., left, chairman of the Joint Chiefs of Staff, meets with Navy Adm. Kurt W. Tidd, commander, U.S. Southern Command, at the command's headquarters in Miami, March 8, 2016. (DoD photo by Navy Petty Officer 2nd Class Dominique A. Pineiro)