In its second attempt, the National Assembly moved to force President Yoon Suk Yeol from office. But the troubles for him and his country are far from over.

SEOUL, South Korea — South Korea’s opposition leader offered Sunday to work with the government to ease the political tumult as officials sought to reassure allies and markets, a day after the opposition-controlled parliament voted to impeach conservative President Yoon Suk Yeol over a short-lived attempt to impose martial law.