** 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)
**FILE** In this March 7, 2013, photo released by the Korean Central News Agency, North Korean leader Kim Jong Un (center) uses binoculars to look at the South's territory from an observation post at the military unit on Jangjae islet, located in the southernmost part of the southwestern sector of North Korea's border with South Korea. (Associated Press/KCNA via KNS) **FILE**
** FILE ** In this March 7, 2013, photo released by the Korean Central News Agency and distributed March 8, 2013, by the Korea News Service, North Korean leader Kim Jong-un, with military officials, gets a ride on a boat on his way to a military unit on Jangjae Islet, located in the southernmost part of the southwestern sector of North Korea's border with South Korea. (Associated Press/KCNA via KNS)
In this undated photo released by the Korean Central News Agency and distributed Sunday, Jan. 27, 2013, in Tokyo by the Korea News Service, North Korean leader Kim Jong Un attends a consultative meeting with officials in the fields of state security and foreign affairs at undisclosed location in North Korea. (AP Photo/Korean Central News Agency via Korea News Service)
In this Wednesday, July 25, 2012, photo released by the Korean Central News Agency and distributed in Tokyo by the Korea News Service on Thursday, July 26, 2012, North Korean leader Kim Jong-un (foreground right), accompanied by his wife, Ri Sol-ju (foreground left), waves as they attend the completion ceremony of the Rungna People's Pleasure Ground in Pyongyang, North Korea. (AP Photo/Korean Central News Agency via Korea News Service)