The only way to avoid World War III against the backdrop of the current confrontation is to increase the role of nuclear deterrence in international relations for a period of 15-20 years, the academic director of the Faculty of World Economy and World Politics at the National Research University Higher School of Economics, Honorary Chairman of the Presidium of the Council on Foreign and Defense Policy Sergei Karaganov said at a meeting of the Valdai Forum, News.Az reports citing Gazeta.Ru.