Justifying war is almost always difficult. It is not easy to weigh the intentions and facts in the sordid situations of international politics. Throughout history many philosophers have attempted to outline the just causes and proper means of fighting international disputes. In Western thought the development of these doctrines are marked out by Augustine and Aquinas, who were Christian philosophers and later the modern theory was developed by a Remonstrant Dutchman; Hugo Grotius (der Groot). Grotius was a scholastic and developed the modern view of the just war theory in the 16th -17th centuries through his book; De jure belli ac pacis libri tres (On the Law of War and Peace: Three books). He outlined the parameters in determining the legality and behavior of just war.
There are two important philosophical principles used when discussing just war. Jus ad bellum means Justice of war and jus in bello means justice in war. Essentially, these terms refer to the two distinct but interconnected measures of the justness in war. The questions he sought to answer were whether going to war is ever justifiable (justice of war), and once engaged in war how should war be conducted in a humane way (justice in war).” Continue reading