Staff Sgt. Thomas Mitchum, an Air Transportation Specialist assigned to the 81st Aerial Port Squadron, Joint Base Charleston, S.C. adheres to checklist requirements in preparation for the mini-Port Dawg Challenge during the unit training assembly June 6, 2015. Airmen from the 81 and 38 APS competed against each other here prior to the Air Force Reserve Command’s Port Dawg Challenge scheduled later this month, pitting squadrons from across the country to compete for the honor of being the “Top Dawgs.” (U.S. Air Force photo by Staff Sgt. Bobby Pilch)