** FILE ** In this March 11, 2013, photo released by the Korean Central News Agency (KCNA) and distributed March 12, 2013, by the Korea News Service, North Korean leader Kim Jong-un greets military personnel at a long-range artillery sub-unit of KPA Unit 641 during his visit to front-line military units near the western sea boarder in North Korea near the South's western border island of Baengnyeong. (AP Photo/KCNA via KNS)

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** FILE ** In this March 11, 2013, photo released by the Korean Central News Agency (KCNA) and distributed March 12, 2013, by the Korea News Service, North Korean leader Kim Jong-un greets military personnel at a long-range artillery sub-unit of KPA Unit 641 during his visit to front-line military units near the western sea boarder in North Korea near the South's western border island of Baengnyeong. (AP Photo/KCNA via KNS)