It’s been a really difficult week for Britain . The United States will always be Britain's most important ally, we share a uniquely close relationship, from economic to defence to culture. But in recent weeks, the leader of our closest ally has behaved like a bully; he has been rude, he has undermined international law, he has tried to undermine the UK and threatened the survival of NATO as a whole. And this week, he said something which, even for him, has shocked me. His claim that NATO allies