There isn’t really a “martial law” in the United States, but there are ways to limit civil liberties, constitutional experts say.

South Korean lawmakers on Wednesday called for the impeachment of President Yoon Suk Yeol after he declared martial law only to reverse the move hours later, triggering the biggest political crisis in decades in Asia's fourth-largest economy.

South Korea’s National Assembly voted to lift an emergency declaration of martial law just hours after President Yoon Suk Yeol announced it on Tuesday, in a swift rebuke of the president’s response to the political deadlock that has hobbled his tenure.