Former President Yoon Suk Yeol attends his first trial on Sept. 26, 2025 [JOINT PRESS CORPS]

A special counsel team has determined former President Yoon Suk Yeol had prepared to declare martial law since late 2023, about a year before his failed bid in December 2024, officials said Monday.

Assistant special counsel Kim Ji-mi said in a briefing that the team has determined that Yoon had made preparations for martial law since November 2023 after questioning former Joint Chiefs of Staff Chairman Kim Myung-soo.

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The now-retired admiral is said to have told the team last month that Yoon asked him whether he would do anything he ordered when they met on Nov. 29, 2023.