Staff Sgt. Benjamin Reynolds, 891st Missile Security Forces Squadron response force leader, crouches in rotor wash during a field training exercise at Turtle Mountain State Forest, N.D., Feb. 14, 2018. During the exercise, 91st Security Forces Group defenders coordinated simulated medical evacuations with two 54th Helicopter Squadron UH-1N Iroquois. (U.S. Air Force photo by Senior Airman J.T. Armstrong)