A U.S. Airman assigned to the 379th Expeditionary Aeromedical Evacuation Squadron, wears a protective coat while Afola, a military working dog with the 379th Expeditionary Security Forces Squadron performs a controlled aggression tactic during a demonstration at Al Udeid Air Base, Qatar, March 12, 2018. The dogs train on how to detect explosives and narcotics as well as perform controlled aggression tactics when detaining suspects. (U.S. Air National Guard photo by Staff Sgt. Patrick Evenson)