B-1B Lancer leads CBP Formation A U.S. Air Force B-1B Lancer flies in formation with Republic of Korea F-15Ks and F-16s in the vicinity of the Republic of Korea March 21, 2017. The sortie was carried out as part of U.S. Pacific Command's continuous bomber presence mission. SHARE: Download: Full Size (0.57 MB) Credit: Senior Airman Daniel Robles VIRIN: 170321-F-HS273-003.JPG Photo Gallery