Mass strikes across France against government plans to slash retirement pensions have halted most high-speed trains, canceled 30pc of Air France domestic flights and shut 11 of 16 Paris Metro lines, as well as the Eiffel Tower. Many schools were closed as teachers joined the strikes. The Eurostar train service, which connects London to Paris, Brussels and Amsterdam, announced significant cancellations. Thursday’s strike is another test for President Emmanuel Macron who is pushing through France’s retirement system in the face of opposition from the country’s powerful trade unions. Thursday’s strike was the largest in a decade, outnumbering the “yellow vest” demonstrations.