From left, U.S. Air Force Gen. Hawk Carlisle, commander of Air Combat Command, French air force Deputy Chief of the Air Staff Gen. Antoine Creux, Chief of Staff of the U.S. Air Force Gen. Mark A. Welsh III, British Royal Air Force Chief of the Air Staff, Air Chief Marshall Sir Andrew Pulford, and U.S. Air Force Gen. Frank Gorenc, commander of U.S. Air Forces in Europe (USAFE), answer questions during a press conference hosted during the Trilateral Exercise at Langley Air Force Base, Va., Dec. 15, 2015. As part of the exercise, Pulford, Welsh, Creux and Gorenc hosted a press conference to discuss the importance of working together as coalition forces. (U.S. Air Force photo by Tech. Sgt. Katie Gar Ward)