The Democratic People's Republic of Korea (DPRK) said that the recent Diplomatic Bluebook released by Japan was "a tricky document to beautify its extreme militarist moves."

"Whenever an opportunity presents itself, Japan is letting loose rhetoric about the exercise of the right to self-defense by neighboring countries," the official Korean Central News Agency reported on Wednesday, citing a Foreign Ministry press statement released a day earlier.

Japan's move was aimed at unsettling regional security while pursuing legal and institutional ambitions as a war state to expand its capacity for aggressive attacks, said the statement.

The statement added that Japan's remarks regarding the DPRK's measures to strengthen its defense capabilities were "a grave provocation encroaching upon the sovereign rights, security interests and development rights" of the country.