Egypt teetered on the brink of overthrow late Tuesday after a defiant Egyptian President Mohammed Morsi rejected an ultimatum issued by the military and at least 23 people were reported killed in clashes between his supporters and opponents.
Defense officials have pledged to intervene if the government does not address public demands and end the political turmoil engulfing Cairo.
In a speech to the nation broadcast live late Tuesday, Morsi said he would not step down and would protect his "constitutional legitimacy" with his life.
