Kim Jong Un visited troops who participated in the shelling of South Korea , state media reports . Two civilians and two South Korean marines died in the attack , which South Korea 's government at the time called a `` definite military provocation '' by North Korea . Kim Jong Un told his troops to be vigilant during upcoming U.S.-South Korean war games . South Korea and Yeonpyeong are set to begin training exercises on Saturday .
Kim Jong Un visited troops who participated in the shelling of South Korea , state media reports . Kim Jong Un told his troops to be vigilant during upcoming U.S.-South Korean war games . South Korea and Yeonpyeong are set to begin training exercises on Saturday .