Retired Air Force Col. Leo K. Thorsness, far right, Congressional Medal of Honor Society president, Air Force Chief of Staff Gen. Norton A. Schwartz, and Chief Master Sgt. of the Air Force James A. Roy, attend a ceremony marking the 150th anniversary of the Medal of Honor at the Pentagon's Hall of Heroes, Washington, D.C., March 25, 2011. Retired Air Force Col. Leo K. Thorsness, far right, Congressional Medal of Honor Society president, Air Force Chief of Staff Gen. Norton A. Schwartz, and Chief Master Sgt. of the Air Force James A. Roy, attend a ceremony marking the 150th anniversary of the Medal of Honor at the Pentagon's Hall of Heroes, Washington, D.C., March 25, 2011. SHARE: Download: Full Size (4.01 MB) Tags: Photo Essays Credit: VIRIN: 913588-Z-FNL23-597.jpg Photo Gallery