AERIAL TRAINING Army Sgt. Chuck Riegel engages a target with a M107 .50-caliber long-range sniper rifle in a UH-60 Black Hawk helicopter over Malamute drop zone on Joint Base Elmendorf-Richardson, Alaska, March 7, 2014. Riegel is assigned to the 25th Infantry Division's 1st Battalion Airborne, 501st Infantry Regiment, 4th Infantry Brigade Combat Team, Alaska. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 181083-G-CMB53-188.jpg Photo Gallery