PURPLE HEART Defense Secretary Robert M. Gates presents the Purple Heart medal to U.S. Army Sgt. Alvarez at the warrior transition unit at the William Beaumont Army Medical Center, Fort Bliss, El Paso, Texas, May 1, 2008. SHARE IMAGE: Download Image: Full Size (0.06 MB) Photo By: VIRIN: 894556-V-GGC23-799.jpg Photo Gallery