Skirmishes between Houthi rebels and Saudi Arabia intensified, as a pause in the nearly two-week run of nightly US strikes on Iran raised fresh questions about President Donald Trump’s strategy in the war. The Houthis, Islamist militants based in Yemen and backed by Iran, said they fired missiles and drones at facilities linked to oil giant Saudi Aramco in the Red Sea port towns of Jizan and Yanbu. There was no immediate confirmation from the Saudi government or Aramco. Saudi authorities briefly...