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Caption: 	This picture taken by North Korea's official Korean Central News Agency (KCNA) on August 15, 2015 shows North Korean leader Kim Jong-Un and Korean People's Army senior officers visiting the Kumsusan Palace of the Sun in Pyongyang for the 70th anniversary of Korea's liberation from Japan. AFP PHOTO / KCNA via KNS REPUBLIC OF KOREA OUT
THIS PICTURE WAS MADE AVAILABLE BY A THIRD PARTY. AFP CAN NOT INDEPENDENTLY VERIFY THE AUTHENTICITY, LOCATION, DATE AND CONTENT OF THIS IMAGE. THIS PHOTO IS DISTRIBUTED EXACTLY AS RECEIVED BY AFP.
---EDITORS NOTE--- RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / KCNA VIA KNS" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTSKNS/AFP/Getty Images
Caption: 	This picture taken by North Korea's official Korean Central News Agency (KCNA) on August 15, 2015 shows North Korean leader Kim Jong-Un and Korean People's Army senior officers visiting the Kumsusan Palace of the Sun in Pyongyang for the 70th anniversary of Korea's liberation from Japan. AFP PHOTO / KCNA via KNS REPUBLIC OF KOREA OUT
THIS PICTURE WAS MADE AVAILABLE BY A THIRD PARTY. AFP CAN NOT INDEPENDENTLY VERIFY THE AUTHENTICITY, LOCATION, DATE AND CONTENT OF THIS IMAGE. THIS PHOTO IS DISTRIBUTED EXACTLY AS RECEIVED BY AFP.
---EDITORS NOTE--- RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / KCNA VIA KNS" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTSKNS/AFP/Getty Images

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Former U.S. Ambassador Bill Richardson says he's very concerned about North Korea's war ultimatum because of Kim Jong Un's inexperience and volatility.