From the historian Mark Mazower, writing in this weekend’s Financial Times:

“The European Union emerged out of the the second world war with one main goal: to ensure the peace. It has done the job so well that many Europeans now assume peace can look after itself. The same war turned the US into the world’s leading power, the creator of global institutions and norms. President Donald Trump’s executive order banning immigration from seven Muslim countries underscores his intent to turn his back on this role. The war on terror will trump international obligations to refugees; outright discrimination will trump both.”