Kim Jong Un
Kim Jong Un is the supreme leader of North Korea, officially heading the political, economic, and military branches of North Korea’s government and all other institutions in the country. He is the grandson of Kim Il Sung, who was the founder of Juche communism as the state’s ideology, and is the third, youngest son of his predecessor as leader, Kim Jong Il. He was declared supreme leader on Dec. 28, 2011, and was the world’s youngest head of state at the time.