A U.S. Air Force B-1B Lancer assigned to the 9th Expeditionary Bomb Squadron, deployed from Dyess Air Force Base, Texas, is joined by Republic of Korea air force F-15s, during a 10-hour mission from Andersen Air Force Base, Guam, into Japanese airspace and over the Korean Peninsula, July 30, 2017. The B-1s first made contact with Japan Air Self-Defense Force F-2 fighter jets in Japanese airspace, then proceeded over the Korean Peninsula where they were joined by South Korean F-15 fighter jets. The aircrews practiced intercept and formation training during the mission, enabling them to improve their combined capabilities and tactical skills, while also strengthening the long standing military-to-military relationships in the Indo-Asia-Pacific. (Courtesy photo)