Pyongyang, April 17 (KCNA) -- A spokesperson for the Ministry of National Defense of the Democratic People's Republic of Korea released the following press statement titled "The U.S. reckless bluffing military demonstration is a futile act of increasing the security threat to its mainland only" on Wednesday: On April 15, the U.S. and the ROK staged a provocative joint air drill with B-1B strategic bomber involved under the pretext of the enhanced regular visibility of "extended deterrence". The U.S. fully showed its confrontational attitude and will against the DPRK through its repeated demonstrative military actions. The recent military move of the U.S. and the ROK is an open threat to the security of our state and a grave provocation that raises the military tension in the region to an extreme dangerous level. The continuous appearance of B-1B serves as an occasion of highlighting once again the fact that the U.S. and its vassal forces are the only ones that unilaterally escalates the military tension nowadays while inciting the hostile atmosphere of confrontation in the Korean peninsula. Recently, the U.S. has renewed its record in openly deploying nuclear submarine, strategic bomber, aircraft carrier and other strategic assets to the Korean peninsula. This fully shows that the deployment of the U.S. strategic means on the Korean peninsula has been fixed as a routine military practice, not as part of emergency measures, and is a constant, not a variable, threatening the regional security environment. The gravity of the deployment of such strategic assets is not simply limited to the increase in the number of times, but it is the process of increasing the skillfulness in tactics and procedures for attacking the DPRK, and completing preparations for going into real action at any time. The DPRK Ministry of National Defence strongly warns that the U.S. bluffing military action that poses a serious danger to the sovereignty of our state and the regional situation will inevitably bring serious negative consequences to the security situation of the U.S. The DPRK will exercise the overwhelming deterrence and continue to make the U.S. recognize that its unannounced deployment of strategic means is a reckless and unnecessary abuse of strength, and get the U.S. realize by itself that the higher the level of provocation against the DPRK is, the greater the level of danger returning to the U.S. will be. The armed forces of the Democratic People's Republic of Korea will never tolerate the slightest sign of threat of the hostile forces against the security sovereignty of the state and will deter by dint of powerful force the U.S. aggressive attempt to permanently fix the malignant instability element in the security environment of the region.