Army Maj. Gen. Carla G. Hawley-Bowland, commander of North Atlantic Regional Medical Command and Walter Reed Army Medical Center, left, and Army Col. Patricia Horoho, commander of the Walter Reed Health Care System, center, give Army Secretary Pete Geren a tour of a Patient Evacuation Vehicle. Unveiled June 5, 2008, during a ceremony at Walter Reed Army Medical Center in Washington, D.C., the PEV is a semi-trailer-sized hospital on wheels that will make wounded soldiers' ride to Walter Reed safer and smoother. Defense Dept. photo by John J. Kruzel Army Maj. Gen. Carla G. Hawley-Bowland, commander of North Atlantic Regional Medical Command and Walter Reed Army Medical Center, left, and Army Col. Patricia Horoho, commander of the Walter Reed Health Care System, center, give Army Secretary Pete Geren a tour of a Patient Evacuation Vehicle. Unveiled June 5, 2008, during a ceremony at Walter Reed Army Medical Center in Washington, D.C., the PEV is a semi-trailer-sized hospital on wheels that will make wounded soldiers' ride to Walter Reed safer and smoother. Defense Dept. photo by John J. Kruzel SHARE: Download: Full Size (1.27 MB) Credit: VIRIN: 892919-Z-WFU50-505.jpg Photo Gallery