All you need to know about martial law, effort to impeach S Korea's prez

South Korean President Yoon Suk Yeol is facing possible impeachment for sending heavily armed soldiers into Seoul's streets with a baffling declaration of martial law that reminded many of the country's past military-backed dictatorships. Lawmakers began impeachment proceedings against Yoon just hours after parliament unanimously voted to cancel martial law, forcing the president to lift his order about six hours after it began. Opposition parties are pushing for a vote on Saturday on the impeachment motion, which needs support from two-thirds of the National Assembly to advance to the Constitutional Court, which would decide whether to remove Yoon from office. In a surprising turnaround, the head of Yoon's governing party expressed support for suspending the president's powers, making Yoon's impeachment more likely. Here's what to know about the situation: Will Yoon be impeached? Opposition parties are pushing for a parliamentary vote on Yoon's impeachment on Saturday, calling hi