Staff Sgt. Colin Meizel, 811th Security Forces Squadron Raven instructor, briefs Brig. Gen. Timothy Green (center), Air Force Director of Civil Engineers, and Col. John Devillier (left), 88th Air Base Wing commander, and about the Airman Phoenix Ravens section of the 811 SFS and its essential missions on Joint Base Andrews, Md., Jan. 13, 2015. Team Andrews highlights the ravens as part of the mission during the Commander-in-Chief’s Installation Excellence Award evaluation. (U.S. Air Force photo/Airman 1st Class Joshua R. M. Dewberry)