The events taking place in this medieval time period prompted him to create his Just War Theory, which created guidelines and circumstances on when it is necessary to fight, and how to fight justly. The two aspects of war he identified that needed moral justification included the right to go to war and the right sorts of conduct in war. The right to go to war regards the moral justification that a nation must provide in order to justly go to war. This includes the just authority, the just cause, the right intention, and the last resort. In the battle of the crusades, the just authority was the pope, the just cause was to defend land against attack from the Turks, the right intention was to reimburse power of Christianity and its leaders, and the last resort was to fight or else their land could be lost. The just conduct of war includes proportionality, discrimination, and responsibility. St. Augustine states that, “In its pilgrim state the heavenly city possesses this peace by faith; and by this faith it lives righteously when it refers to the attainment of that peace every good action towards God and man; for the life of the city is a social life” …show more content…
Their inputs in East and West Rome carried into the Medieval period and the power the Christian Church had in their society. Constantine’s legalization of Christianity, and Theodosius I’s declaration of Christianity as the official religion of the Roman Empire eventually lead to the widespread of the Orthodox Church throughout all of Europe. In the medieval period, citizens based their lives and decisions off of self-sacrifice and salvation as instructed by their most powerful leader, the Pope. In society today, freedom to practice any given religion is granted as stated in the Bill of Rights. This shows how influential the rise of Christianity in antiquity has been and will continue to be in the development of modern day politics and