After WWI, several factors contributed to the rise of totalitarianism in Europe. Economic hardship from the Treaty of Versailles led to hyperinflation in Germany and social unrest. Citizens turned to authoritarian leaders like Mussolini in Italy and Hitler in Germany who promised national restoration. Meanwhile, Stalin rose to power in the USSR and established an oppressive communist regime with centralized control and forced industrialization that caused widespread famine. Militaristic nationalism also grew in Japan, leading it to invade Manchuria and later ally with Germany and Italy against communism.