A U.S. Air Force B-1B Lancer bombers assigned to the 37th Expeditionary Bomb Squadron, deployed from Ellsworth AFB, South Dakota, and two Republic of Korea Air Force F-15K fighters fly over a crowd during the 2017 Seoul Aerospace & Defense Exhibition (Seoul ADEX 17) at Seoul Airport, Republic of Korea (ROK) Oct. 21, 2017.The two B-1B bombers departed Andersen Air Force Base, Guam, and conducted an 11-hour mission in the vicinity of the Korean Peninsula and Japan. The mission included sequential bilateral integration with Koku Jieitai (Japan Air Self-Defense Force) and ROK air forces before continuing over land to support a flyover for the 2017 Seoul International Aerospace & Defense Exhibition (Seoul ADEX 17). (U.S. Air Force photo by Staff Sgt. Alex Echols)