President Yoon Suk Yeol declared martial law in South Korea, citing threats to democracy from opposition groups
Armed troops were deployed to key government buildings, including the parliament
Opposition leaders called the declaration unconstitutional, sparking nationwide protests
Parliament holds an emergency session and votes to revoke the martial law decree
Martial law is subsequently revoked, and troops begin withdrawing from government buildings
Opposition parties file impeachment motions against President Yoon and minsters
Nationwide protests intensify as citizens demand President Yoon's resignation
Yoon defends his decision in a national address, citing national security needs