Defense University Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, addresses National Defense University students at Fort Lesley J. McNair, Washington, D.C., Aug. 23, 2016 NDU provides joint professional military education to prepare leaders to think and operate effectively at the highest international security levels. DoD photo by Navy Petty Officer 2nd Class Dominique A. Pineiro SHARE IMAGE: Download Image: Full Size (1.85 MB) Tags: National Defense University, Fort McNair, Chairman, Joe Dunford Photo By: Petty Officer 2nd Class Dominique A. Pineiro VIRIN: 160823-D-PB383-013.JPG Photo Gallery