U.S. Air Force Gen. Terrence J. O'Shaughnessy, Pacific Air Forces commander, right, and Indian Air Force Air Chief Marshal Birender Singh Dhanoa, Chief of the Air Staff and honorary dean for the 2017 Pacific Air Chiefs Symposium, discuss challenges throughout the Indo-Asia-Pacific region during a panel at Joint Base Pearl Harbor-Hickam, Hawaii, Sept. 26, 2017. The symposium marks the largest number of air chiefs gathering from across the Indo-Asia-Pacific for dialogue and is intended to increase cooperation with our allies and partners. (U.S. Air Force photo/Tech. Sgt. Kamaile Casillas)