JULIAN E. BARNES and ADAM ENTOUS
Wall Street Journal 
September 6, 2013
WASHINGTON—The U.S. has intercepted an order from Iran to militants in Iraq to attack the U.S. Embassy and other American interests in Baghdad in the event of a strike on Syria , officials said, amid an expanding array of reprisal threats across the region.
Military officials have been trying to predict the range of possible responses from Syria, Iran and their allies. U.S. officials said they are on alert for Iran’s fleet of small, fast boats in the Persian Gulf, where American warships are positioned. U.S. officials also fear Hezbollah could attack the U.S. Embassy in Beirut.
While the U.S. has moved military resources in the region for a possible strike, it has other assets in the area that would be ready to respond to any reprisals by Syria, Iran or its allies.
Those deployments include a strike group of the USS Nimitz aircraft carrier and three destroyers in the Red Sea, and an amphibious ship, the USS San Antonio, in the Eastern Mediterranean, which would help with any evacuations.