The U.S. is to blame for these developments, the article says, stressing the U.S. has long posed nuclear threats to the DPRK in a systematic way.

The article goes on:

The DPRK needed a countermeasure as the U.S. brandished a nuclear stick and made it clear that it would destroy the DPRK.

The U.S. misunderstood the DPRK. The Bush administration's DPRK policy that stemmed from its ignorance of the DPRK resulted in making the DPRK a nuclear weapons state.

It was a natural product of the misguided policy toward the DPRK. The U.S. had to draw a lesson from it, though belatedly.

But it kept its hostile policy toward the DPRK.

As the U.S. was seized by a foolish ambition to bring down the DPRK, the latter could not but choose to bolster war deterrence in a new advanced way to cope with the U.S. harsh hostile policy and nuclear threats to the DPRK as it had already warned Washington.

The DPRK's first H-bomb test was conducted on Jan. 6, shaking the earth.

The U.S. was gravely mistaken.

It is seriously mistaken if it seeks to bring down the DPRK by force of arms. It is a pipe dream.

The DPRK will steadily bolster its nuclear deterrence of justice qualitatively and quantitatively as along as it deems it necessary to safeguard the sovereignty of the country, the right to existence of the nation and the peace in the Korean Peninsula and the region if the U.S. does not pay heed to the advice of the DPRK and persists in its hostile policy toward the DPRK.