LONDON—Dmitry Medvedev, Russia’s former president, has warned that Moscow’s confrontation with the West will last decades and that its conflict with Ukraine could become permanent.
In an article for the government’s Rossiiskaya Gazeta newspaper, Medvedev said tensions between Russia and the West were “much worse” than during the 1962 Cuban missile crisis when the world teetered on the edge of a nuclear conflagration.