Seoul, South Korea — South Korean President Yoon Suk Yeol declared emergency martial law on Tuesday, accusing the opposition of engaging in “anti-state activities plotting rebellion” and calling for a crackdown on pro-North Korean forces. The dramatic move has plunged the nation into political uncertainty, drawing fierce backlash from opposition leaders and raising questions about democratic norms.
In a televised address, Yoon said the martial law aims “to eradicate pro-North Korean forces and to protect the constitutional order of freedom.” The decision followed escalating tensions with the opposition Democratic Party (DP), which had recently pushed through a downsized budget bill in the parliamentary budget committee and filed impeachment motions against a state auditor and the chief prosecutor.
The Ministry of National Defense confirmed heightened military readiness following the declaration. Defense Minister Lee Jong-sup convened a meeting of top commanders, ordered tightened vigilance, and placed the armed forces on emergency guard status.
Opposition Condemns Martial Law
The opposition Democratic Party swiftly condemned Yoon’s declaration as unconstitutional. DP leader Lee Jae-myung called it an “anti-public measure” aimed at suppressing dissent, while ruling party leader Han Dong-hoon of the People Power Party (PPP) also criticized the president, saying the “declaration of martial law is “wrong” and that he will “block it” together with the people, signaling cracks within Yoon’s conservative political base.
Critics accused Yoon of overstepping his authority and using martial law to stifle political opposition.
Deepening Political Crisis
Yoon’s decision comes amid an already fraught political landscape, with his administration clashing frequently with the DP over legislative priorities and investigations into alleged misconduct by senior officials. There are concerns that the declaration of martial law could exacerbate divisions in the National Assembly and provoke mass protests.
South Korea’s constitution allows for martial law in grave national emergencies, but its invocation remains rare and controversial. The last instance of martial law occurred in 1980 during a period of military dictatorship, a historical parallel that has raised alarm among citizens and rights groups.
The government has yet to announce specific measures under the martial law order, but protests and demonstrations are expected in the coming days as citizens and opposition groups rally against the move.

Se Hoon Kim
Se Hoon Kim is the Managing Editor at Global Strat View.