Lt. Col. John Robinson, 315th Airlift Wing Operations Group commander, leads a single file relay race during the Warrior Challenge January 5, 2017, at Joint Base Charleston, S.C. The team building event brought together Airmen from various agencies throughout the 315th AW for a friendly competition. Eight teams, averaging four Airmen per team, participated in the challenge. (U.S. Air Force photo by Senior Airman Tom Brading)