RT by @timourazhari: MAYBE U.S. DOESN'T HAVE TO USE BOOTS ON THE GROUND AT ALL IN IRAN, BUT POINT IS TO BE UNPREDICTABLE, U.S. DEFENSE SECRETARY SAYS

MAYBE U.S. DOESN'T HAVE TO USE BOOTS ON THE GROUND AT ALL IN IRAN, BUT POINT IS TO BE UNPREDICTABLE, U.S. DEFENSE SECRETARY SAYS