Mystery surrounds the U.S. Air Force in the Middle East after two tankers issued emergency distress codes and disappeared from radar within hours of each other. A KC-135 Stratotanker and a KC-46A Pegasus were both operating in support of "Operation Project Freedom" near the Strait of Hormuz when they signaled emergencies. With reports of GPS jamming in the area and search-and-rescue helicopters taking off from Qatar, the question remains: was this a technical failure, or has the naval war in the Gulf expanded into the skies?