Air Chiefs from throughout the Indo-Asia-Pacific region stand in formation during the honor cordon at the start of the 2017 Pacific Air Chiefs Symposium at Joint Base Pearl Harbor-Hickam, Hawaii, Sept. 26, 2017. This event 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)