U.S. Air Force Senior Airman Matt Hargis, 633rd Civil Engineer Squadron electrical systems journeyman, throws a fire hose in an attempt to knock down bottles, during a Prime Base Engineering Emergency Force readiness challenge at Joint Base Langley-Eustis, Va., Oct. 25, 2016. Hargis, along with other 633rd CES members from different sections, took part in events that challenged them at different skills. (U.S. Air Force photo by Senior Airman Kimberly Nagle)