Provide Testimony Defense Secretary Jim Mattis and Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, provide testimony on the fiscal 2018 Defense Department budget request to members of the Senate Appropriations Committee's defense subcommittee, June 14, 2017. DoD photo by Navy Petty Officer 2nd Class Dominique A. Pineiro SHARE IMAGE: Download Image: Full Size (0.7 MB) Tags: joint staff, isil, General Dunford, Joseph F. Dunford, 19th CJCS, Joseph F. Dunford Jr. , 2018, Fiscal Year, Fy2018, Armed Forces, Iraq, SecDef, Chairman, Joe Dunford, Syria, usmc, Budget, MARINE CORPS, MARINES Photo By: Petty Officer 2nd Class Dominique A. Pineiro VIRIN: 170614-D-PB383-005.JPG Photo Gallery