National Assembly (South Korea) in the context of "Impeachment of Yoon Suk Yeol"

The prime minister of the Republic of Korea (Korean: 국무총리) is the deputy head of government and the second highest political office of South Korea. The prime minister is appointed by the president of the Republic of Korea, with the National Assembly's approval. The prime minister may be a member of the National Assembly, but this is not required to hold the office.

Unlike prime ministers of parliamentary democracies, the prime minister of South Korea is not the head of government of South Korea but a senior member of the cabinet, since the president is both the head of state and head of government in the country. The prime minister is the principal executive assistant to the president, and is first in the order of succession; the prime minister assumes the presidency in acting capacity, upon the removal or incapacitation of the sitting president, similar to the vice president of the United States.

The 2024 South Korean martial law crisis was a political crisis in South Korea triggered by President Yoon Suk Yeol's declaration of martial law. On 3 December 2024, at 22:27 Korea Standard Time (KST), Yoon, then the president of South Korea, announced the imposition of martial law during a televised address. In his speech, he accused the Democratic Party (DPK), which held a majority in the National Assembly, of engaging in "anti-state activities" and collaborating with "North Korean communists" to undermine the country, describing their dominance as a "legislative dictatorship". The declaration suspended political activities, including sessions of the National Assembly and local legislatures, and imposed restrictions on the press. Reports also indicated that Yoon ordered the arrest of several political opponents, including leaders of both the DPK and his own People Power Party (PPP). The move was broadly characterised by both domestic and international media, as well as by South Korean political figures, as an attempted self-coup by Yoon to rule by decree and to reimpose full authoritarianism on the country for the first time since the June Democratic Struggle.

The declaration was opposed by both parties and resulted in protests. At 01:02 on 4 December, 190 legislators who had arrived at the National Assembly Proceeding Hall unanimously passed a motion to lift martial law, despite attempts by the Republic of Korea Army Special Warfare Command to prevent the vote. At 04:30, Yoon and his cabinet lifted martial law and soon disbanded the Martial Law Command. The opposition subsequently began impeachment proceedings against Yoon and said it would continue to do so if he did not resign. Uproar over the declaration has led to the resignation of several officials in Yoon's administration, including Defense Minister Kim Yong-hyun, who urged Yoon to enact martial law during a last-minute cabinet meeting shortly before the declaration and was second-in-command of the martial law order. Yoon, as well as other officials of his administration, and military officers were investigated for their role in the implementation of the decree.

The Third Republic of Korea (Korean: 제3공화국; RR: Je sam gonghwaguk; lit. "Third Republic") was the government of South Korea from 17 December 1963 to 21 November 1972. The Third Republic was founded on the dissolution of the Supreme Council for National Reconstruction that overthrew the Second Republic and established a military government in May 1961. Park Chung Hee, the Chairman of the Supreme Council, was elected President of South Korea in the 1963 presidential election.

The Third Republic was presented as a return to civilian government under the National Assembly but in practice was a dictatorship under Park, Supreme Council members, and the Democratic Republican Party. The Third Republic prioritized South Korea's economic development, anti-communism, and strengthening ties with the United States and Japan.

The Fourth Republic of Korea (Korean: 제4공화국; RR: Je sa Gonghwaguk; lit. "Fourth Republic") was the government of South Korea from November 1972 to February 1981.

The Fourth Republic was founded on the approval of the Yushin Constitution in the 1972 constitutional referendum, codifying the de facto dictatorial powers held by President Park Chung Hee, and succeeding the Third Republic. Park and his Democratic Republican Party ruled under the centralized and authoritarian Yushin System until the assassination of Park on 26 October 1979. The Fourth Republic entered a period of political instability under Park's successor, Choi Kyu-hah, and the escalating martial law declared after Park's death. Choi was unofficially overthrown by Chun Doo-hwan in the coup d'état of December Twelfth in December 1979, and began the armed suppression of the Gwangju Uprising against martial law. Chun launched the coup d'état of May Seventeenth in May 1980, establishing a military dictatorship under the National Council for Reunification and dissolving the National Assembly, and was elected president by the council in the August 1980 presidential election. The Fourth Republic was dissolved on the adoption of a new constitution in March 1981 and replaced with the Fifth Republic of Korea.