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