Saudi Arabia has deployed its most capable fighter aircraft to the United States to participate in the U.S. Air Force's premier airpower training exercise for the first time in more than two decades. A half-dozen Royal Saudi Air Force F-15S fighters on Aug. 6 made the 11,000-mile trek from the deserts of the Middle East to the deserts of Nevada just two years after the U.S. government withdrew its forces from the kingdom, including significant U.S. Air Force capabilities at...