Austro-Prussian War
The pretext for the conflict was found in the dispute between Prussia and Austria over the administration of Schleswig-Holstein, which the two of them had conquered from Denmark and agreed to jointly occupy at the end of the Second Schleswig War in 1864. When Austria brought the dispute before the German Diet and also decided to convene the Diet of Holstein, Prussia declared that the Gastein Convention had thereby been nullified and invaded Holstein. When the German Diet responded by voting for a partial mobilization against Prussia, Bismarck claimed that the German Confederation was ended. Crown Prince Frederick "was the only member of the Prussian Crown Council to uphold the rights of the Duke of Augustenburg and oppose the idea of a war with Austria which he described as "fratricide"". Although he supported unification and the restoration of the medieval empire, "Fritz could not accept that war was the right way to unite Germany."
Louis XVI of France
This intervention in America was not possible without France adopting a neutral position in European affairs in order not to be drawn into a continental war which would be simply a repetition of the French policy mistakes in the Seven Years' War. Vergennes supported by King Louis refused to go to War to support Austria in the Bavarian Succession crisis in 1778, when Austrian Holy Roman Emperor, Joseph, tried to control parts of Bavaria. Vergennes and Maurepas refused to support the Austrian position, but the intervention of Marie Antoinette in favor of Austria obliged France to adopt a position more favorable to Austria, which in the treaty of Teschen was able to get in compensation a territory whose population numbered around 100,000 persons. However, this intervention was a disaster for the image of the Queen, who was named ""l'Autrichienne"" (a pun in French meaning "Austrian", but the "chienne" suffix can mean "bitch") on account of it.