What has happened in South Korea and what does martial law have to do with it?
South Korea is reeling after a whiplash six hours during which the country’s embattled president declared martial law but was forced to lift it amid widespread condemnation, throwing the country’s political landscape into chaos and uncertainty.
The saga began unfolding Tuesday night as most South Koreans prepared to go to sleep – prompting furious lawmakers to force their way past soldiers into parliament to strike down the decree, as protesters demanded President Yoon Suk Yeol’s removal and no return to the country’s painful authoritarian past.
By dawn, the president had caved – agreeing to lift martial law. But experts say he’s dug a political grave; opposition parties are already moving to introduce impeachment measures.
Questions are still swirling around the future of Yoon’s presidency, his party’s rule, and what happens next in one of the world’s most important economies and a major United States ally.
Here’s what we know.
What happened? What is martial law?
Yoon declared martial law around 10:30 p.m. local time Tuesday in an unannounced late-night TV address, accusing the country’s main opposition party of sympathizing with North Korea and of “anti-state” activities.
He also cited a motion by the opposition Democratic Party, which has a majority in parliament, to impeach top prosecutors and reject a government budget proposal.
Martial law refers to granting the military temporary rule during an emergency, which the president has the constitutional ability to declare. But the announcement hit like a bombshell, sending shock waves through a democratic nation and sparking an astonishing late-night political showdown.
In a nation with a strong contemporary tradition of free speech, Yoon’s military decree banned all political activities, including protests, rallies, and actions by political parties, according to Yonhap news agency. It also prohibited “denying free democracy or attempting a subversion,” and “manipulating public opinion.”
In the end, the decree only lasted a few hours.

Lawmakers flocked to the parliament, pushing their way past soldiers who had been deployed to keep the building blocked off.
In an extraordinary emergency late-night meeting, those present voted unanimously to block the decree, a vote the president is legally bound to obey.
The country’s political blocs came together to oppose Yoon’s decree – including members of his own party, with the party chief apologizing to the public and demanding an explanation from the president.
By 4:30 a.m., Yoon announced he would comply and lift the martial law order, saying he had withdrawn the troops deployed earlier in the night. But he doubled down on accusations that the opposition party was frustrating the moves of his government, urging lawmakers to stop their “legislative manipulation.”
Yoon’s cabinet voted to lift the decree soon after.
Political paralysis
South Korea has been in a bitter political stalemate for months, with the country’s liberal opposition parties winning a parliamentary majority in April. The election was widely seen as a referendum on Yoon, whose popularity has plummeted due to a number of scandals and controversies since he took office in 2022.
Yoon, a conservative, has clashed with the opposition on many of his policies that require legislation, preventing him from moving forward on campaign promises to cut taxes and ease business regulations.
He has also grown increasingly frustrated with the opposition’s efforts to impeach government figures, some of whom he’d appointed – including the chair of the broadcasting watchdog, the chair of the state auditor, and several top prosecutors, according to Yonhap.
The prosecutors in particular are a sore point for Yoon. Opposition lawmakers argue they failed to indict Yoon’s wife, the first lady – who has been embroiled in scandal and accusations of stock manipulation, which the presidential office has repeatedly denied.
What was the response?
Outrage, shock and confusion ran through the country – and the world – in the immediate aftermath of the decree.
Late Tuesday night, residents in the capital Seoul rushed to be with their family members, while others gathered in front of the parliament building, where law enforcement told some they could be arrested without warrants.
Many protesters carried signs and flags calling for Yoon’s impeachment.
Some members of parliament appeared to clash with authorities outside the parliament building, with television footage showing troops attempting to enter the main hall – though they began withdrawing a few hours later when lawmakers blocked the decree.
