N o Russian thinker has worked harder than Aleksandr Dugin to rationalize the invasion of Ukraine. Long before it started, Dugin came up with a whole philosophical system, known as “neo-Eurasianism,” to explain why Russia, the country with the largest landmass in the world, would need to steal land from its neighbors and kill many thousands of people in the process. His books and lectures on the subject earned him the nickname “Putin’s brain.” That overstates his closeness to the Russian