South Korean air force Col. Junsun Lee, 17th Fighter Wing Air Operations Group commander, speaks to members of the Pacific F-35 Users Group Conference at headquarters Pacific Air Forces, Joint Base Pearl Harbor-Hickam, Hawaii, March 12, 2019. More than 80 personnel from the four nations discussed bed down and strategic concepts, operations, logistics, and sustainment topics, all building on the success of the March 2017 F-35 Symposium. (U.S. Air Force photo by Staff Sgt. Hailey Haux)