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
Conventional warfare by Plato, then found more acceptance in the consolidation of power under the Roman Catholic Church. European monarchs then gained power as the Catholic Church was stripped of temporal power and was replaced by the divine right of kings. In 1648, the powers of Europe signed the Treaty of Westphalia which ended the religious violence for purely political governance and outlook, signifying the birth of the modern 'state'. Within this statist paradigm, only the state and its appointed representatives were allowed to bear arms and enter into war. In fact, war was only understood as a conflict between sovereign states.