Photo released by KCNA news agency on March 12, 2013 shows Kim Jong Un (L), top leader of the Democratic People's Republic of Korea (DPRK), inspecting a long-range artillery sub-unit of Korean People's Army Unit 641, March 11, 2013. [Xinhua]

Photo released by KCNA news agency on March 12, 2013 shows Kim Jong Un (3rd R), top leader of the Democratic People's Republic of Korea (DPRK), inspecting a long-range artillery sub-unit of Korean People's Army Unit 641, March 11, 2013. [Xinhua]

Photo released by KCNA news agency on March 12, 2013 shows Kim Jong Un (C), top leader of the Democratic People's Republic of Korea (DPRK), inspecting a long-range artillery sub-unit of Korean People's Army Unit 641, March 11, 2013. [Xinhua]