Impeachment of Yoon Suk Yeol

On 14 December 2024, Yoon Suk Yeol, the president of South Korea, was impeached by the National Assembly following the passing of the impeachment bill with 204 of the 300 members voting in favor. This action came in response to Yoon's declaration of martial law on 3 December 2024.

Prime Minister of South Korea Han Duck-soo assumed the role of acting president pending the Constitutional Court's decision on whether to accept the impeachment. Han was himself impeached on 27 December 2024, and first deputy prime minister Choi Sang-mok became acting president. On 24 March 2025, Han was acquitted by the Constitutional Court and returned to the role of acting president.

The court upheld the impeachment of Yoon in a unanimous 8–0 decision on 4 April 2025, removing Yoon from office. Thus, Han continued as acting president until resigning, along with Choi, on 1 May 2025, which left second deputy prime minister Lee Ju-ho as acting president. The court determined that Yoon's five major illegal acts, including ordering the military and police to block lawmakers from entering the National Assembly, ordering the arrest of judges and Supreme Court justices, and illegally declaring martial law, were serious violations of the Constitution. Per the Constitution, a snap election was held on 3 June 2025, 60 days after Yoon's removal, with Lee Jae-myung being elected to succeed Yoon as president.

An earlier impeachment motion was put to a parliamentary vote on 7 December 2024, but failed because the number of attending legislators did not meet the quorum required for its passage, as members of the ruling People Power Party (PPP) boycotted the vote.

Opinion polling on the Yoon Suk Yeol presidency throughout 2024 was increasingly negative. The declaration of martial law hardened these views, with many surveyed in South Korea believing Yoon should resign voluntarily, or that he should be formally removed from office.