Fin de siècle
The rising nationalistic and imperialistic tensions between the European nations throughout the "Fin de siècle" period eventually erupted in the First World War. After Germany had lost the war and undergone the tumultuous German Revolution, the "völkisch" movement drastically radicalized itself in Weimar Germany under the harsh terms of the Treaty of Versailles, and Adolf Hitler would go on to say that "the basic ideas of National-Socialism are "völkisch", just as the "völkisch" ideas are National-Socialist".