Kim Jong Un (C, back), top leader of the Democratic People's Republic of Korea (DPRK), inspects the unit of the Korean People's Army (KPA) on the DRPK's border Mu Islet on the southwest front in this photo released by DPRK's official news agency KCNA on Aug. 19, 2012. Kim Jong Un inspected a front-line artillery unit days before Seoul and Washington are to launch their annual joint exercises, state media reported on Saturday. [Xinhua/KCNA]