The undated photo provided by Korean Central News Agency (KCNA) on March 14, 2013 shows a live ammunition drill of the Democratic People's Republic of Korea (DPRK) at the southwest sector of the front line. DPRK's top leader Kim Jong Un watched and guided the drill which was conducted by the Jangjae Islet defense detachment and the Mu Islet artillery detachment. [Xinhua]