外交革命
The Diplomatic Revolution as an alliance between France, the Habsburg Empire and Russia manifested in 1756 in the Treaty of Versailles and the following Seven Years' War against Prussia and Great Britain. Although an overall German nation-state was on the horizon, the loyalties of the German population outside of Prussia were primarily with smaller states. The French war against Prussia was justified through its role as guarantor of the 1648 Peace of Westphalia, and France was fighting on the side of the majority of German states, including Habsburg Austria.