As far as Donald Trump, NATO allies can no longer rely on the US military. Anticipate, argues Peter van Ham. The Republican presidential candidate sees the world through the eyes of a businessman and he thinks NATO as it stands is a bad deal, with the US paying for Europeans who do not take their own defence seriously. This viewpoint is certainly not new, but Trump’s America First doctrine puts Europe on the spot: if NATO is no longer a reliable cornerstone of Europe’s defence, what is the alternative? The European Union? That might seem logical but it is highly doubtful whether the EU would be able to take on that task, however much Brussels-based Euro-federalists may like the idea. [...]