U.S. Admiral Daryl Caudle Says Iran Has Attempted But Failed To Interfere By Firing At Commercial Shipping; U.S. Eliminated Six Iranian Small Boats Attempting To Interfere With Commercial Shipping; Iranian Forces Are Strongly Advised To Remain Well Clear Of U.S. Military Assets; U.S. Military Blockade On Iran Is Exceeding Expectations; Iran Has Targeted Commercial And U.S. Military Ships With Cruise Missiles