Members of the 820th Base Defense Group sync radio channels before starting counter-improvised explosive device (IED) training, Jan. 24, 2018, at Moody Air Force Base, Ga. The 820th BDG defenders trained on how to detect IEDs and countermeasures to take when one is found. IEDs have become one of the most common forms of attack in the Middle East since 2003. (U.S. Air Force photos by Staff Sgt. Eric Summers Jr.)