The undated photo provided by Korean Central News Agency (KCNA) on Oct. 30, 2014 shows aircrafts of Korean People's Army (KPA) in a flight drill. Top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong Un has overseen a flight drill by the Korean People's Army (KPA), the official KCNA news agency reported Thursday. (Xinhua/KCNA)

The undated photo provided by Korean Central News Agency (KCNA) on Oct. 30, 2014 shows top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong Un (2nd R) discussing with senior officers when he oversees a flight drill by the Korean People's Army (KPA). Top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong Un has overseen a flight drill by the Korean People's Army (KPA), the official KCNA news agency reported Thursday. (Xinhua/KCNA)

The undated photo provided by Korean Central News Agency (KCNA) on Oct. 30, 2014 shows top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong Un (C) discussing with senior officers when he oversees a flight drill by the Korean People's Army (KPA). Top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong Un has overseen a flight drill by the Korean People's Army (KPA), the official KCNA news agency reported Thursday. (Xinhua/KCNA)

The undated photo provided by Korean Central News Agency (KCNA) on Oct. 30, 2014 shows top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong Un (front) overseeing a flight drill by the Korean People's Army (KPA). Top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong Un has overseen a flight drill by the Korean People's Army (KPA), the official KCNA news agency reported Thursday. (Xinhua/KCNA)

The undated photo provided by Korean Central News Agency (KCNA) on Oct. 30, 2014 shows top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong Un (C) boarding a plane when he oversees a flight drill by the Korean People's Army (KPA). Top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong Un has overseen a flight drill by the Korean People's Army (KPA), the official KCNA news agency reported Thursday. (Xinhua/KCNA)