CJCS Visits Quincy, Mass. for Vietnam Veterans Day Defense Secretary James Mattis informally speaks to the media before holding a press briefing at the Pentagon to update the media on the campaign against the Islamic State of Iraq and Syria, May 19, 2017. DoD photo by Navy Petty Officer 2nd Class Dominique A. Pineiro SHARE IMAGE: Download Image: Full Size (3.85 MB) Tags: Islamic State, joint staff, General Dunford, Joseph F. Dunford, 19th CJCS, Press Conference, Joseph F. Dunford Jr. , isis, Presser, mattis, SecDef, Chairman, Joe Dunford, usmc, MARINE CORPS, MARINES Photo By: Dominique A. Pineiro VIRIN: 170519-D-ZZ999-888.JPG Photo Gallery