Impeached South Korean President Yoon Suk Yeol, in a message to conservative supporters rallying outside his Seoul residence, vowed to “fight to the end” against “anti-state forces,” while his legal team warned Thursday that police officers attempting to detain him could face arrest by his presidential security service or even civilians. Yoon’s latest statement of defiance came as the Corruption Investigation Office for High-Ranking Officials prepared to execute a detainment warrant against him that was issued by a Seoul court on Tuesday and is valid for one week. The warrant was issued after Yoon evaded multiple requests to appear for questioning and blocked searches of his office, hindering an investigation into whether his hourslong martial law imposition on Dec. 3 amounted to rebellion. Oh Dong-woon, the anti-corruption agency’s chief prosecutor, has indicated that police forces might be deployed if Yoon’s security service resists the detention attempt, which could occur as early as Thursday. But it remains unclear whether Yoon can be compelled to submit to questioning. Yoon’s legal team issued a statement on Thursday warning that any attempt by the anti-corruption agency to use police units for his detention would exceed their legal authority. The lawyers said police officers could face arrest by either the “presidential security service or any citizens” if they try to detain Yoon. They didn’t elaborate further on the claim. South Korean law permits anyone to make an arrest to stop an active crime, and critics accused Yoon of inciting his supporters to obstruct attempts to detain him. In a message to supporters gathered outside his residence Wednesday evening, Yoon said he would continue to fight against anti-state forces “violating our sovereignty” and putting the nation in “danger.” He applauded his supporters for their efforts to protect “liberal democracy and constitutional order” and said he was watching their protests on live YouTube broadcasts, according to a photo of the message shared by Yoon’s lawyers. Yoon Kap-keun, the president’s lawyer, filed a challenge with the Seoul Western District Court on Thursday to block both the detention warrant for Yoon Suk Yeol and a related search warrant for his residence. The lawyer argued that both warrants violate criminal laws and the constitution. The liberal opposition Democratic Party, which drove the legislative vote that impeached Yoon Suk Yeol on Dec. 14 over his imposition of martial law, accused the president of trying to mobilize his supporters to block his detention and called for law enforcement authorities to execute the warrant immediately. Braving subfreezing temperatures, thousands of Yoon’s supporters rallied for hours near his residence on Thursday amid a heavy police presence, waving South Korean and American flags while chanting, “Nullify the impeachment!” and “We will protect President Yoon Suk Yeol!” Officers removed some protesters who laid down on a road leading to the entrance of Yoon’s residence, but there were no immediate reports of major clashes. “The Corruption Investigation Office must detain him immediately, and the presidential security service must cooperate with the lawful execution of the detainment warrant,” said Park Chan-dae, the Democrats’ floor leader. “They should be aware that obstructing the execution of the detainment warrant could result in punishment for interference with official duties and complicity in rebellion,” he said. Yoon’s lawyers have argued that the court’s detainment warrant is invalid, claiming that the anti-corruption agency […]