UNITED STATES - NOVEMBER 14: U.S. Army Colonel Charles Milliken poses for a photo at the Walter Reed Army Institute of Research offices in Silver Spring, Maryland, U.S., on Wednesday, Nov. 14, 2007. Milliken, an Army psychiatrist, is the co-author of a study finding that U.S. soldiers back from Iraq were more likely to report alcohol abuse, family conflicts and symptoms of depression and post-traumatic stress disorder after six months than immediately upon their return. (Photo by Dennis Brack/Bloomberg via Getty Images)
