US, South Korea aircraft in show of force Bombs dropped by U.S. Air Force B-1B bombers, F-35 stealth fighter jets and South Korean F-15 fighter jets hit a simulated target as they fly over the Korean Peninsula on the South Korean side on Aug. 31, 2017. (South Korea Defense Ministry via AP) U.S. Marine Corps’ F-35B Lightning II fighters assigned to the Marine Corps Air Station Iwakuni, Japan are joined by South Korean Air Force F-15K fighters during a 10-hour mission from Andersen Air Force Base, Guam, into Japanese airspace and over the Korean Peninsula on Aug. 30, 2017. (South Korea Defense Ministry via AP) U.S. Marine Corps F-35B Lightning II stealth fighters fly alongside 2 U.S. Air Force B-1B Lancers over waters near Kyushu, Japan, on Aug. 30, 2017. The aircraft made contact with two Japan Air Self-Defense Force F-15J fighters in Japanese airspace in direct response to North Korea’s intermediate-range ballistic missile launch, which flew directly over northern Japan on Aug. 28. (Japan Air Self-Defense Force) South Korean F-15K fighters drop munitions over Pilsung Range during operations alongside U.S. F-35B stealth fighters and B-1B Lancer bombers. South Korea Defense Ministry via AP) Munitions from a U.S. Air Force, U.S. Marine Corps and South Korean Air Force bilateral mission explode at the Pilsung Range, South Korea. The American and South Korean aircraft flew across the Korean Peninsula and practiced attack capabilities by releasing live weapons at the training area before returning to their respective home stations. (Staff Sgt. Alex Fox Echols III/U.S. Air Force) Weapons drop from a U.S. Air Force B-1B Lancer bomber as it practices attack capabilities on Aug. 30, 2017. (South Korea Defense Ministry via AP) In a demonstration of U.S. commitment to its allies, U.S. Marine Corps F-35B Lightning II fighters assigned to Marine Corps Air Station Iwakuni, Japan, are joined by South Korean Air Force F-15K fighters during a 10-hour mission from Andersen Air Force Base, into Japanese airspace and over the Korean Peninsula on Aug. 30, 2017. (South Korea Defense Ministry via AP)