Testimony Prep Defense Secretary James N. Mattis and Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, provide testimony on the fiscal year 2019 National Defense Authorization Budget to members of the House Armed Services Committee at the Rayburn House Office Building in Washington D.C., April 12, 2018. DoD Photo by Navy Petty Officer 1st Class Dominique A. Pineiro SHARE IMAGE: Download Image: Full Size (1.57 MB) Tags: Congressional Hearings, James N. Mattis, SecDef, Chairman, Joe Dunford, Budget Photo By: Dominique A. Pineiro VIRIN: 180412-D-PB383-012.JPG Photo Gallery