A Qatari arms factory that makes rifles and grenade launchers has added a product that saves rather than takes lives — ventilators, needed at home and abroad amid the coronavirus pandemic. The venture is the latest salvo in Doha’s charm offensive to cement old partnerships and secure new friends as a bitter spat with Saudi Arabia and its allies drags into its fourth year this Friday. It has also allowed the small Gulf state to draw on capabilities developed the hard way in the wake of its regional isolation.
