Meeting of 32 member states comes at crucial time for alliance after tensions with US over Iran and Greenland Nato leaders, including the moody US president Donald Trump, are set to meet in Ankara, Turkey today and tomorrow for the latest round of talks on transatlantic defence. As our defence and security editor Dan Sabbagh says, there has been “a remarkable effort behind the scenes at Trump-proofing whatever happens in Ankara” given his tendency to go into angry outbursts directed at the allie