Mars Type 14), also known under alternative US designation codename KN-20,[6] is a mobile intercontinental ballistic missile developed by North Korea.

[10] A detailed analysis by the Bulletin of the Atomic Scientists claims that the current variant of the Hwasong-14 may not even be capable of delivering a first-generation nuclear warhead to Anchorage, Alaska.

But even if North Korea is now capable of fabricating a relatively light-weight, "miniaturized" atomic bomb that can survive the extreme reentry environments of long-range rocket delivery, it will, with certainty, not be able to deliver such an atomic bomb to the lower 48 states of the United States with the rocket tested on 3 July and 28 July.

The July 2017 tests were conducted with a 200 kg (440 lb) reentry vehicle, giving the missile its maximum range of 10,400 km (6,500 mi), enough to reach New York City but not Washington D.C., although such a payload is much lighter than North Korea is believed to be capable of weaponizing.

North Korea’s need for an alternative to the failing Hwasong-10 and the recent appearance of the RD-250 engine along with other evidence, suggests the transfers occurred in 2015–2017.

The space agency chief said that according to Ukrainian information, “Russia today has between 7 and 20” of the Tsyklon rockets...They have these engines, they have the documentation.

Based on the data from the test flight, if the missile were fired at the optimal efficient trajectory, it is predicted that the maximum effective range would exceed 10,000 km (6,200 mi).

If factoring in the rotation of the Earth, which may provide a range boost when travelling eastward, the Hwasong-14’s coverage area would include the US West Coast, Chicago, and possibly even New York,[10] but only with a substantially reduced payload.