In the JC this week, French philosopher Bernard-Henri Lévy makes a powerful argument in favour of Nato intervention in Ukraine. Western forces, he writes, should impose a no-fly zone, which would very likely entail direct confrontation with Russian jets, and even the deployment of ground troops. When asked what was at stake, he replied: “The future of Europe. And of the free world. Nothing less.” Mr Lévy’s words hold a great deal of weight. In January, when others were more concerned with the pandemic than the threat of World War Three, he issued a stark warning about “rising extremism” in Russia. “I have feared its coming since August 2013, when President Obama, in Syria, gave the signal to retreat and…