NATO leaders are meeting in the Turkish capital, Ankara, for the alliance’s annual summit on July 7-8 in the shadow of the Iran war and American complaints that not all European allies are pulling their weight when it comes to defense spending. The expectation is that US President Donald Trump will have harsh comments for several of his European counterparts as they meet for a dinner on the first day and then an expected three-hour session of the North Atlantic Council on the second and final day. The following are six things to watch for…