The Caucuses: As this part of Russia’s empire frays, fundamentalist Islam takes a stronger hold

Russian rule has always been tenuous there. The territory, which stretches from the Black Sea to the Caspian, was colonised late and was never fully integrated into Russia’s empire. Its Muslim peoples enjoyed considerable autonomy, both religious and cultural, until the Bolsheviks took over—whereupon the Caucasus was so modernised and Sovietised that when the Soviet Union fell only Chechnya declared its independence.

Two wars later Chechnya is relatively stable under President Ramzan Kadyrov, a former rebel whose patron is Vladimir Putin, Russia’s prime minister. Grozny, Chechnya’s once-ruined capital, is now a surreal place boasting several skyscrapers, the largest mosque in Europe, chandelier-lit streets and a Putin Prospect. The president enjoys something of a personality cult: official licence-plates carry his initials, and banners outside schools thank him for “taking care of our future”. Yet Chechnya is virtually a separate state, where women must wear headscarves in public and the sale of alcohol is restricted.

Violence has spread from Chechnya to other north Caucasus republics and beyond…