Navy Rear Adm. Matthew L. Nathan, commander of the National Naval Medical Center, center, greets one of the last 18 patients at Walter Reed Army Medical Center being transferred to what will become the new Walter Reed National Military Medical Center in Bethesda, Md., Aug. 27, 2011. Navy Rear Adm. Matthew L. Nathan, commander of the National Naval Medical Center, center, greets one of the last 18 patients at Walter Reed Army Medical Center being transferred to what will become the new Walter Reed National Military Medical Center in Bethesda, Md., Aug. 27, 2011. SHARE IMAGE: Download Image: Full Size (4.43 MB) Tags: Photo Essays Photo By: VIRIN: 065522-A-JEL20-257.jpg Photo Gallery