As North Korea moves closer to its first nuclear test in five years, one of the biggest worries for the U.S. and its allies might be a relatively small blast.
Kim Jong Un has made clear he wants to build an arsenal of “tactical” nuclear weapons, meaning lower-yield bombs that could be used on the battlefield rather than on whole cities. First it must produce miniaturized warheads to fit on the expanding array of short-ranged ballistic missiles it has designed to threaten U.S. troops and their allies in Asia.
This week, Kim said a barrage of missiles launched in recent days were intended for tactical nuclear strikes, while warning Washington that any attempted attack could be met by strikes at American forces in South Korea and Japan. The comments were a fresh sign that North Korea could be preparing for its first nuclear test since September 2017, something the U.S. has been ringing alarm bells about for months.