PURPLE HEART U.S. Defense Secretary Robert M. Gates thanks U.S. Army Spc. Gregory Miller for his service and sacrifice after presenting him with the Purple Heart Medal and a Combat Action Badge at the Heathe N. Craig Joint Theater Hospital at Bagram Air Field, March 7, 2011. Miller is assigned to the 744th Engineer Company, 54th Engineer Battalion. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 516328-B-MVD66-317.jpg Photo Gallery