US President Donald Trump has said Nato is "no longer obsolete", reversing a stance that had alarmed allies.Hosting Nato Secretary General Jens Stoltenberg at the White House, Mr Trump said the threat of terrorism had underlined the alliance's importance.He called on Nato to do more to help Iraqi and Afghan "partners".Mr Trump has repeatedly questioned Nato's purpose, while complaining that the US pays an unfair share of membership.The Nato U-turn wasn't Mr Trump's only change of heart on Wednesday.
