The pontificate of Pius XI coincided with the early aftermath of the First World War. The old European monarchies had been largely swept away and a new and precarious order formed across the continent. In the East, the Soviet Union arose. In Italy, the Fascist dictator Benito Mussolini took power, while in Germany, the fragile Weimar Republic collapsed with the Nazi seizure of power. His reign was one of busy diplomatic activity for the Vatican. The Church made advances on several fronts in the 1920s, improving relations with France and, most spectacularly, settling the Roman question with Italy and gaining recognition of an independent Vatican state.