Kim Jong Un (R), supreme leader of the Democratic People's Republic of Korea (DPRK), waves as he reviews the grand celebrations marking the 105th birth anniversary of DPRK founder Kim Il Sung in central Pyongyang, April 15, 2017. DPRK on Saturday showcased its military muscles by parading all of its most advanced ballistic and tactic missiles, including a submarine-launched ballistic missile which could strike targets 1,000 kilometers away. [Photo/Xinhua]