The U.S. military has begun daily aerial-refueling tanker flights to support the Saudi-led coalition that is intervening in Yemen’s civil war, the latest sign of growing American involvement in the new Middle East conflict.

A U.S. Air Force KC-135 Stratotanker flew the first mission Tuesday night, providing fuel for a Saudi-owned F-15 Eagle and an F-16 Fighting Falcon operated by the United Arab Emirates air force, Army Col. Steve Warren, a Pentagon spokesman, said Wednesday.

U.S. Central Command plans to fly one daily tanker mission to support the allied aircraft, but the tanker will not cross into Yemeni airspace, Warren said. […]