World War III (WW3 or WWIII), also known as the Third World War, was a global war that begin in 1997. It involved the vast majority of the world's nations, including the world's great powers, who eventually formed into two allies based on those used during the Second World War; the Axis and the Allies. World War Three was the most widespread and deadly war since World War Two. Nations involved placed their nation's entire economic, industrial, and scientific capabilities toward the war effort, creating a global state of total war. Marked by massive destruction and death of civilians, and the only war since World War Two to utilize nuclear weapons, the war devastated countries across the world.