North Korea fired a suspected long-range missile designed to strike the mainland U.S. on Friday, South Korea’s military said, a day after the North resumed its testing activities in an apparent protest over U.S. moves to solidify its alliances with South Korea and Japan. The South’s Joint Chiefs of Staff said in a statement that it detected a ballistic missile launch off the North’s eastern coast on Friday morning. It later said the missile launched is likely an intercontinental ballistic missile.