Should we all be Gaullists now? In the language of France’s most important European partner, the answer is “Jein!” (a German word combining ja for yes and nein for no). Yes, Emmanuel Macron has been right to warn us ever since he became France’s president in 2017 that, discerning a long-term trend of US disengagement, Europe should be ready to defend itself. Now, confronted with Donald Trump, a rogue US president putting in question an 80-year-old American commitment to the defence of Europe against Russia, lifelong Euro-Atlanticists like me must acknowledge that we need not just a Europe with more