A US MQ-9 military drone has been shot down off the Yemeni coast in the Red Sea, according to the Pentagon. Initial findings suggest the drone was hit by a missile launched by Yemen’s Iran-backed Houthi militia on Monday, Pentagon spokeswoman Sabrina Singh said in Washington on Tuesday. The Houthis had already shot down a US military MQ-9 drone in November. There had been an increase in attacks by the Houthi militia on US forces and commercial shipping in the Read Sea over the weekend, Singh said. The Houthi rebels, who control large parts of Yemen, have been attacking ships in the Red Sea in …