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.

Parliamentary aides in South Korea emptied fire extinguishers on armed troops entering the national assembly as protesters took to the streets.

Calls are growing for South Korean President Yoon Suk Yeol’s ouster after he declared then rescinded martial law. Here’s how an impeachment would work. South Korean President Yoon Suk Yeol is facing growing calls to resign or face impeachment ...