South Korea's opposition parties moved Wednesday to impeach the president over the shocking and short-lived declaration of martial law that drew heavily armed troops to encircle parliament before lawmakers climbed walls to reenter the building and unanimously voted to lift his order.

South Korean President Yoon Suk Yeol’s future is hanging in the balance after a chaotic night during which he dramatically declared martial law and then withdrew it just as suddenly, plunging the country into turmoil.