Pictures of dictator Kim Jong Un applauding as another North Korean missile ascends into the sky have become routine. But the Hermit Kingdom’s two most recent launches deserve special attention because they show Pyongyang nearing its goal of deploying a nuclear-armed intercontinental ballistic missile (ICBM) that could destroy American cities.
On May 14 the North launched a new intermediate-range missile it calls the Hwasong-12. The missile traveled fewer than 500 miles, but that’s because it was fired at a very steep angle to avoid flying over neighboring countries. If launched at the optimum angle, it could have a range of 2,800 miles, which means it threatens the U.S. island of Guam. That’s the farthest of North Korea’s missiles so far, not counting the rockets it used to launch satellites.
The Hwasong appears to use a new high-performance engine tested in March that it developed from scratch instead of adapting a Russian or Chinese design. The missile appears to be a single-stage, liquid-fueled rocket that could become the first stage of a new ICBM. That would allow the North to abandon the derivative designs it previously cobbled together to achieve the thrust for longer ranges. In its current form the Hwasong is also road mobile, making it more difficult to find and destroy. The North Koreans further claim the Hwasong can carry a “large, heavy nuclear warhead.”
On Sunday the North successfully tested another relatively new missile, the Pukguksong-2. While its range is shorter at about 1,000 miles, it is solid-fueled and can be moved using a domestically produced transporter, both of which improve survivability.
Based on a submarine-launched missile that may be a modified Chinese design, the Pukguksong’s first test in February was also successful. That suggests the missile will prove reliable, and North Korean media are reporting that Kim has ordered mass production.
The North also took advantage of the steep trajectory of both missiles to work on one of the last remaining obstacles to ICBM deployment—a re-entry vehicle capable of withstanding the heat and vibration of the fall through the atmosphere. The North Koreans say the Hwasong “verified the homing feature of the warhead under the worst re-entry situation,” and that may be more than a boast. The U.S. and South Korea have confirmed that the test warhead survived and transmitted data.
The North still has to overcome obstacles to targeting the U.S., not least designing an ICBM re-entry vehicle. While the Kim regime is believed to have partially miniaturized an atomic weapon, it hasn’t tested a hydrogen bomb. But that is little comfort. On Tuesday when Senators asked Lt. Gen. Vince Stewart, director of the U.S. Defense Intelligence Agency, how long North Korea needs before it can deploy an ICBM, he answered that it “is on a pathway where this capability is inevitable.”
This month’s tests mean advances in Pyongyang’s nuclear and missile programs are coming much faster than analysts thought possible. If the U.S. and its allies don’t take steps to stop it now, the world will soon wake up to a nuclear North Korea far more dangerous and disruptive than the one we have today.