The Great Kurultáj, an event held annually outside the town of Bugac, Hungary, is billed as both the “Tribal Assembly of the Hun-­Turkic Nations” and “Europe’s Largest Equestrian Event.” When I arrived last August, I was fittingly greeted by a variety of riders on horseback: some dressed as Huns, others as Parthian cavalrymen, Scythian archers, Magyar warriors, csikós cowboys, and betyár bandits. In total there were representatives from twenty-­seven “tribes,” all members of the “Hun-­Turkic” fraternity. The festival’s entrance was marked by a sixty-­foot-­tall portrait of Attila himself, wielding an immense broadsword and standing in front of what was…