U.S. Army Sgt. 1st Class Maria Alvarenga, assigned to S3, Allied Forces North (AFNORTH) Battalion, United States Army NATO Brigade, noncommissioned officer in charge for the range operations, adjusts the front sight of an M16 rifle as Staff Sgt. Sheena Knight, with Bravo Company, AFNORTH Bn., watches the procedure, in the Training Support Center Benelux 25-meter range in Chièvres, Belgium, March 18, 2015. (U.S. Army photo by Visual Information Specialist Pierre-Etienne Courtejoie/Released)