Hundred Years' War (1415–53)
By 1449, the French had retaken Rouen. In 1450 the Count of Clermont and Arthur de Richemont, Earl of Richmond, of the Montfort family (the future Arthur III, Duke of Brittany) caught an English army attempting to relieve Caen at the Battle of Formigny and defeated it. The English army was attacked from the flank and rear by Richemont's force just as they were on the verge of beating Clermont's army. The French proceeded to capture Caen on July 6 and Bordeaux and Bayonne in 1451. The attempt by Talbot to retake Guyenne, though initially welcomed by the locals, was crushed by Jean Bureau and his cannons at the Battle of Castillon in 1453 where Talbot had led a small Anglo-Gascon force in a frontal attack on an entrenched camp. This is considered the last battle of the Hundred Years' War.
European wars of religion
The Thirty Years' War was fought between 1618 and 1648, principally on the territory of today's Germany, and involved most of the major European powers. Beginning as a religious conflict between Protestants and Catholics in the Holy Roman Empire, it gradually developed into a general war involving much of Europe, for reasons not necessarily related to religion. The war marked a continuation of the France-Habsburg rivalry for pre-eminence in Europe, which led later to direct war between France and Spain. Military intervention by external powers such as Denmark and Sweden on the Protestant side increased the duration of the war and the extent of its devastation. In the latter stages of the war, Catholic France, fearful of an increase in Habsburg power, also intervened on the Protestant side.
The major impact of the Thirty Years' War, in which mercenary armies were extensively used, was the devastation of entire regions scavenged bare by the foraging armies. Episodes of widespread famine and disease devastated the population of the German states and, to a lesser extent, the Low Countries and Italy, while bankrupting many of the powers involved. The war ended with the Treaty of Münster, a part of the wider Peace of Westphalia.