Three Sikorsky UH-60 Black Hawks are flown to drop off a multinational search and rescue team during Exercise Angel Thunder, Florence, Ariz., May 16, 2014. Angel Thunder is a multilateral annual exercise that supports the DoD's training requirements for Personnel Recovery responsibilities through high-fidelity exercises. AT provides the most realistic PR training environment available to USAF Rescue forces as well as their Joint, Interagency and Coalition partners.