Kim Yong Hyun, the former Defense Minister of South Korea, has been arrested amid a political crisis as he faces charges of treason. His incarceration follows his controversial support for President Yoon Suk Yeol’s brief imposition of martial law, a decision that was later rescinded after public backlash. The political tension escalated with an opposition motion to impeach President Yoon failing in Parliament, despite substantial dissent from his party.