U.S. Air Force Senior Airman Aaron Lee, 9th Security Forces Squadron patrolman, performs pushups during Air Combat Command’s Defender Challenge team selection at Joint Base Langley-Eustis, Virginia, August 24, 2018. The team candidates performed a variety of physical exercises prior to firing the M4 carbine and M9 pistol during the selection. (U.S. Air Force photo by Airman 1st Class Anthony Nin Leclerec)