European nations and Canada moved on Sunday to shut their airspace to Russian aircraft, an unprecedented step aimed at pressuring President Vladimir Putin to end his invasion of Ukraine, the biggest attack on a European state since World War Two. Aeroflot said it would cancel all flights to European destinations after E.U. foreign policy chief Josep Borrell said the European Union had decided to close its airspace to Russian traffic. The United States is considering similar action, but has yet to make a final decision, according to U.S. officials. The U.S. government said citizens should consider leaving Russia immediately on commercial flights, citing an increasing number of airlines canceling flights as countries closed their airspace […]