Kim Jong Un visited soldiers who participated in the shelling of Seoul , state media reports . Kim ordered his troops to be vigilant during upcoming North Korean war games . The United States and South Korea are set to conduct training exercises on Monday .
Kim Jong Un visited troops who participated in the shelling of Yeonpyeong , state media reports . Kim told his troops to be vigilant during upcoming U.S.-South Korean war games . The United States and South Korea are set to begin training exercises on Monday .