an identical interest in peace and those who violated this principle were considered irrational and immoral. Later in another chapter, he defines power as a substantial component of politics and an essential tool of the government. He then divides political power into military power, economic power, and power over opinion, which need not be considered separately as they remain intimately involved with each other. The supreme importance of the military instrument lies in the fact that the ultimate ratio of power in international relations is war, additionally, the foreign policy of a country is limited not only by its objectives, but also by its military strengths, becoming an end in itself. In the pursuit of power, military and economic economic artifacts will be used, however, the art of persuasion is essential for a political leader along with propaganda to obtain power. Subsequently, Carr describes the differences between municipal law and international law, where this last one lacks a judicature, an executive and a legislature. Following this, he outlines the naturalist and the realist view of law and says that the essence of law is to promote stability and maintain the existing framework of society. The author links shortly after the sanctity of treaties, which were made to protect rights, because not all countries followed the binding character of treaty obligations and therefore created a clause that said that the obligations of a treaty were binding in international law so long as conditions prevailing at the time of the conclusion of the treaty continued. The book also insists on the moral part insisting that there is a moral taint about treaties signed under duress, that is to say, being performed by force, and is referring to the Versailles Treaty. But the insistence on the legal validity of international treaties could also be a weapon used by ruling nations to maintain their supremacy over weaker nations on whom the treaties have been imposed. The author criticizes morality as many cannot accept the fact that sometimes change needs war. “Without rebellion, mankind would stagnate and injustice would be irremediable”. Status quo will not last long and its defence is not always successful, it will most likely end in a war, but there is a probable solution, to establish methods of peaceful change, which is currently the fundamental problem of international morality and of international politics. Finally, during the interwar period there was a