Franco-Dutch War of the Dutch Republic by surprise, is often referred to as "het Rampjaar" ("the Disaster Year") in Dutch. In order to weaken its Hapsburg rivals in Spain and the Holy Roman Empire, largely Catholic France supported the Dutch Republic during the 1568-1648 Eighty Years War and in 1635, it entered the Thirty Years' War as part of the anti-Imperial Protestant alliance. The 1648 Peace of Westphalia ended the wider war but the subsidiary Franco-Spanish War continued until the 1659 Treaty of the Pyrenees; the net effect was that Spain was no longer the dominant power in Europe, while France emerged
Pomeranian War Frederick's downfall and to humiliate and destroy the Swedish queen Louisa Ulrika of Prussia, Frederick's sister. The Hats faction was also encouraged to declare war by France, whose wishes were central to the Hats' actions. Frederick's invasion of Saxony in 1756 was used as a pretext for war, being denounced by both Sweden and France as a violation of the Treaty of Westphalia of 1648, of which they were both guarantors. On March 21, 1757 the governments of France and Austria agreed a convention in which Sweden and France explained that they had to maintain Germany's freedom in line with