GREELY PERIMETER U.S. Army Spc. Gabriel Ives, left, and Spc. Ian Beers patrol the perimeter of the 850-acre Ground-based Interceptor Missile Defense Complex during a routine security patrol on Fort Greely, Alaska, Dec. 6, 2008. Ives and Beers are assigned to the Alaska Army National Guard's 49th Missile Defense Battalion, Military Police Company. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 891459-R-KYC65-369.jpg Photo Gallery