Staff Sgt. Carl Enis, 31, was among the seven Airmen killed in a helicopter crash in Iraq, March 15, 2018. He was a pararescueman assigned to the 308th Rescue Squadron at Patrick Air Force Base, Fla. The squadron of elite Guardian Angel Airmen serve as highly specialized rescue specialists on the battlefield providing life-saving trauma care and search and rescue as part of the 920th Rescue Wing - one of the most deployed units in the Air Force Reserve. The 308th RQS is part of the 920th Rescue Wing. (Courtesy photo)