Iran's elite Revolutionary Guard boats attack a naval vessel during a three-day military drill in the Gulf on April 22, 2010. Iran's elite Revolutionary Guards launched a new "ultra-fast" boat capable of causing high destruction after testing it in a key oil supply route, at the start of a three-day military drill. AFP PHOTO/FARS NEWS/MEHDI MARIZAD (Photo credit should read MEHDI MARIZAD/AFP/Getty Images)