The United States and its allies have again responded to a North Korean missile test. This time, the response included a military exercise using real ammunition. American military aircraft included two B-1B bombers from a base in Guam and four F-35B stealth fighter jets from a base in Japan. Four South Korean fighter jets joined the Americans to fly over the Korean peninsula. And Japanese military aircraft flew over Japanese waters in the 10-hour operation. The combined forces released live weapons at the Pilsung Range training area. The show of force came two days after North Korea fired an intermediate-range missile over Japan. General Terrence J. O'Shaughnessy is the commander of U.S. Pacific Air Forces. He said, "North Korea's actions are a threat to our allies, partners and homeland, and their destabilizing actions will be met accordingly.”