11th Security Forces Squadron elite gate guards Staff Sgt. Reddzl Tuano, left, and Senior Airman Timothy Hosfelt, right, conduct an area sweep during the 11th SFS Defender’s Challenge on Joint Base Andrews, Md., Oct. 3, 2018. The challenge is a competition to display technical proficiency and build camaraderie. (U.S. Air Force photo by Airman 1st Class Michael S. Murphy)