Entering the new century, the Bush administration reduced the DPRK-U.S. Agreed Framework into a dead document and listed the DPRK as a target of its preemptive nuclear attack.

Under these circumstances, Kim Jong Il made a bold decision to frustrate the enemies' attempt for preemptive nuclear attack on the DPRK.

In January, Juche 92 (2003), the DPRK government declared its withdrawal from NPT. And the DPRK conducted a successful underground nuclear test in October, 2006.

After Obama's assumption of the presidency, the U.S. has as ever become frantic in its moves for provoking a nuclear war against the DPRK, assembling nuclear task forces around the Korean Peninsula.

To cope with the crucial situation, the DPRK carried out another successful underground nuclear test in May 2009 as part of its efforts to bolster up its self-defensive nuclear deterrent.

Through successful underground nuclear tests, the DPRK made a breach in the U.S. doctrine of nuke almighty and fully demonstrated the might of its nuclear deterrent capable of defending peace and security in the Korean Peninsula and the rest of Northeast Asia and the world.

Thanks to the iron will of Marshal Kim Jong Un who is creditably materializing the last instructions of Kim Jong Il, the DPRK could succeed in the third underground nuclear test and first H-bomb test, emerging as a nuclear power.