Shocked at the news about the DPRK's successful nuclear warhead explosion test, the U.S. is as ever pulling up the DPRK, branding it as "threat", "provocation" and "ignorance" of international norms of practices, Choe said, and continued:

The nuclear warhead test, designed under the plan of the Workers' Party of Korea for building strategic nuclear force, was a resolute and just self-defensive measure against the U.S.'s anachronistic hostile policy toward the DPRK.

It is none other than the U.S. which pushed the DPRK to a nuclear state with preemptive attack and retaliatory strike abilities. Therefore, the U.S. had better look back upon its foolish act before putting the blame on the latter.

Ri Chol Su, section chief of the Manufactory No. 111 of the State Academy of Sciences, said the U.S. is working hard to alarm the whole world again through pressure and sanctions against the DPRK, adding:

The DPRK assumed the strategic position as a legitimate nuclear weapons state by itself, so that its position is not the one which could be changed according to someone's yes or no.

For the DPRK, the recent test is merely another step towards materializing its measures for bolstering the state nuclear force in quality and quantity to put an end to the U.S. nuclear threat to it.

The DPRK will show the world how dispersedly the vicious attempt of the hostile forces is shattered by Songun Korea which advances along the road of simultaneously pushing forward economic construction and the building of nuclear force.