Sustainment Address Robert McMahon, left, assistant secretary of defense for sustainment, addresses service leaders and chief executive officers who oversee privatized housing construction, maintenance and quality control issues during a meeting in Washington, Aug. 15, 2019. SHARE IMAGE: Download Image: Full Size (1.33 MB) Tags: DOD Photo By: David Vergun, DOD VIRIN: 190815-D-UB488-001C.JPG Photo Gallery