REAL THAW 13 sets aim for interoperability
MONTE REAL, Portugal – U.S. Air Force Staff Sgt. Steve Vaughn, 81st Aircraft Maintenance Unit jet engine mechanic from Chattanooga, Tenn., walks on the wing of an A-10 Thunderbolt II aircraft during a pre-flight inspection in Monte Real, Portugal, Feb. 14, 2013. The 81st is participating in REAL THAW, a Portuguese military exercise that seeks to provide a realistic operating environment that accurately reflects current theaters of operation, provide adequate training to multinational participants while coordinating joint operations assets on land, air and sea, and improve interoperability between allied forces. (U.S. Air Force photo by Staff Sgt. Nathanael Callon/Released)