Senior Airman Nick Lodge, 811th Security Forces Squadron response force member, completes a ruck march as part of a security forces defender competition on Joint Base Andrews, Md., July 23, 2018. Lodge, along with other defenders, fought to get one of the four positions on the team going to Camp Bullis, San Antonio, Texas, to represent Air Force District of Washington in the Defender Challenge 2018. (U.S. Air Force photo by Airman 1st Class Michael S. Murphy)