This thesis explores the differences between the Treaty of Paris in 1763 and previous international settlements, arguing that they are due to changes in the understanding of the international order. By looking at the decline in religious language, concern over the welfare of those impacted by the war, an increased emphasis on the state, and finally the extent of the ceded territory, this thesis argues that these political changes occurred symbiotically alongside wider changes in 18th century society. By looking at the prominence of ideas transferred throughout society and the drawing of parallels between the thought of the philosophes and their impact on strategy and the economy, the differences are placed into a broader context to show the growing importance of geopolitical concerns in the minds of European policymakers. The extent of the French territory ceded to the British is explained through the influence of the philosophes and the physiocrats on the French Prime Minister. An increase in the interest of those impacted by war is seen throughout official proclamations, government memoranda, private letters, and the writings of the philosophes. This same concept is used to explain the wish of 18th century figures to be perceived as erudite and desirous for peace. The final chapter looks at the development of the state, particularly the increase in the rule of law and reliance on philosophical concepts such as the “Law of Nations”, sovereignty, and “Natural Law” in the construction of strategy, the development of the state, and the design of the terms of the Treaty of Paris. The argument comes together to demonstrate that the Treaty of Paris was influenced by wider ideas in British and French society, whilst being signed at a critical moment in the development of international order.