This would be the exception. The United States has agreed to let South Korea double its range of ballistic missiles, as fears over a strike from North Korea mount. The agreement also lets South Korea use powerful drones to carry weapons. The nation can now deploy missiles at up to 500 miles—making it possible to hit any target in North Korea, though not endanger China or Japan. The move makes sense, given the rants of belligerent North Korean leader Kim Jong-un.