This image provided by the U.S. Navy shows the aircraft carrier USS George H.W. Bush as it transits the Strait of Hormuz April 28, 2014, as seen from the guided-missile cruiser USS Philippine Sea.

US Navy, Specialist 3rd Class Abe McNatt / AP

This image provided by the U.S. Navy shows the aircraft carrier USS George H.W. Bush as it transits the Strait of Hormuz April 28, 2014, as seen from the guided-missile cruiser USS Philippine Sea.