Kim Jong-un is a North Korean politician serving as Supreme Leader of North Korea since 2011 and Leader of the Workers' Party of Korea since 2012. Kim is the second child of Kim Jong-il and Ko Yong-hui . The grandson of Kim Il-sung, the first leader of North Korea from 1948 to 1994, he is the first North Korean leader to have been born after the country's founding.From late 2010, Kim Jong-un was viewed as heir apparent to the leadership of the DPRK, and following the elder Kim's death, he was announced as the "Great Successor" by North Korean state television. Kim holds the titles of Chairman of the Workers' Party of Korea , Chairman of the Central Military Commission, Chairman of the State Affairs Commission, Supreme Commander of the Korean People's Army, and member of the Presidium of the Politburo of the Workers' Party of Korea, the highest decision-making body in North Korea. Kim was promoted to the rank of Marshal of North Korea in the Korean People's Army on 18 July 2012, consolidating his position as the Supreme Commander of the Armed Forces and is often referred to as Marshal Kim Jong-un or "the Marshal" by state media. Kim obtained two degrees, one in physics at Kim Il-sung University, and another as an Army officer at the Kim Il-sung Military University.Forbes magazine ranked Kim the 46th most powerful person in the world in 2013 and the third highest amongst Koreans after Ban Ki-moon and Lee Kun-hee. On 12 December 2013, North Korean news outlets reported that Kim Jong-un had ordered the execution of his uncle Jang Song-thaek due to "treachery". On 9 March 2014, Kim was elected unopposed to the Supreme People's Assembly. He is widely believed to have ordered the assassination of his half-brother, Kim Jong-nam, in Malaysia in February 2017.Despite tense relations, North Korea agreed to participate in the 2018 Winter Olympics in Pyeongchang. Following the Olympics, Kim Jong-un and President Moon Jae-in conducted the April 2018 inter-Korean summit. It was the first time since the end of the Korean War in 1953 that a North Korean leader entered the South's territory. On 12 June 2018, Kim Jong-un and US President Donald Trump met for the 2018 North Korea–United States summit in Singapore, the first-ever talks held between a North Korean leader and a sitting US President, to discuss the North Korean nuclear program.