Europeans should take seriously Trump’s proposal for a greater financial contribution to NATO. This is the only way to prevent a catastrophe.
Only two years ago, my wife and I spent a year at research institutes in Berlin, and shared some happy moments buying holiday gifts at the Christmas market near the Memorial Church at the heart of the city. So the recent tragedy had special meaning for us. But as a long-time friend of Germany, I urge you not to allow it to divert your attention from more serious dangers.