South Korea has not fallen! That's a ridiculous thing to say.
The President has issues with the opposition party who control the National Assembly so he tried to take control by force. But he failed.
Within 4h of the President address the National Assembly voted 190-0 to rescind martial law. Later that night the President announced that the martial law has been lifted.
The leader of the President's own political party criticized the move, calling his declaration “wrong.”
Several senior aides to the President, including his chief of staff, collectively tendered their resignation.
Members of South Korea’s opposition, which controls the National Assembly, have submitted a motion to impeach the President.
The secretary general of the National Assembly condemn the illegal, unconstitutional actions of the military and said he would hold the military accountable for its role in imposing martial law.