Nelda Barrientes, 28th Medical Group secretary, answers the phone at her desk inside the 28th MDG at Ellsworth Air Force Base, S.D., May 3, 2013. Barrientes daily tasks consist of coordinating staff schedules, reviewing and editing important documents and most significantly assisting the group commander. (U.S. Air Force photo by Airman 1st Class Anania Tekurio/Released)