Training to perfection
1st Lt. Andrej Pulver, 56th Rescue Squadron co-pilot, left, and Capt. John Golden 56th RQS pilot, perform a pre-flight check during exercise Voijek Valour at Hullavington Airfield, England, March 2, 2016. The exercise included six helicopters, 250 British soldiers and more than a dozen jets conducting scenarios across Salisbury Plain. (U.S. Air Force photo/Staff Sgt. Emerson Nuñez)