The U.S. is helping Saudi Arabia defend its border with Yemen by providing intelligence from aerial surveillance while Saudi warplanes bomb rebels who have thrown Yemen into chaos, a senior U.S. military officer said Thursday.

The U.S. intelligence is allowing the Saudis to monitor potential security threats to their border, and is giving them a better view of movements inside Yemen by the Houthi rebels, the officer said.

The officer also said the U.S. Central Command has been authorized to provide aerial refueling for Saudi warplanes in support of their bombing campaign against the Houthis, although no refueling missions have been flown yet. […]