Synopsis - As warned since 1990, World War 3 is still possible, indeed probable; it may terminate the world. A crisis, probably Ukrainian, will bring about a Russian neocommunist dictator, who will wage this war. This crisis will occur because of systemic and Russian national reasons; its unexpectedness and the unbalanced West will promote the crisis; it will grow because of WMD [Weapons of Mass Detruction] and other crisis multipliers. It has several particular routes, notably Russian failure, and many variants; any may lead to world termination. Nonetheless the theory is indeterministic; there are other futures: there need be no World War 3.