Kim Jong Un is the Supreme Leader of North Korea, having assumed power in December 2011 after the death of his father, Kim Jong Il. Born on January 8, 1983 or 1984, he is the third son of Kim Jong Il and Ko Yong-hui. Kim Jong Un was educated partly in Switzerland before returning to North Korea and being groomed for leadership, officially introduced to the public in 2010 as the designated successor[1][2][3][6]. Upon succession, Kim Jong Un inherited control over the world's fourth-largest military and a nuclear arsenal. Early in his rule, he consolidated power by purging rivals and reinforcing his authority within the Korean Workers’ Party and the military. By 2012, he held several key titles including first secretary of the Workers' Party, chairman of the Central Military Commission, and chairman of the National Defense Commission. In 2016, constitutional changes established the State Affairs Commission, headed by Kim, as the most powerful governing body in North Korea[3]. His leadership is marked by a policy known as *byungjin*, emphasizing simultaneous development of the economy and nuclear weapons. Under Kim, North Korea has conducted multiple nuclear and missile tests, escalating tensions internationally. However, he has also engaged in historic diplomacy, including summits with South Korean President Moon Jae-in and U.S. President Donald Trump in 2018, though relations remain strained[2][3]. Kim Jong Un maintains a highly secretive and authoritarian regime characterized by strict control over society and the suppression of dissent. Reports note his ruthless consolidation of power, including the alleged assassination of his half-brother Kim Jong Nam in 2017. His regime sustains a strong cult of personality similar to those of his predecessors[1][2][5]. Recently, Kim has participated in international diplomacy, including a visit to Russia amid ongoing global tensions. Despite these efforts, North Korea remains isolated, with ongoing sanctions and international scrutiny focused on its nuclear ambitions and human rights record[2].