Hi, need to submit a 1500 words paper on the topic International Politics Concepts, Theories and Issues. This paper takes the stand that the international system is anarchical in nature, and there is no legitimate authority. This concept of legitimate authority refers to the justification of people to have real power over other people, as well as the decisions they make. Mitchell further claims that legitimate authority is always exercised by the government, and the government derives justification for the use of such power because the power is given by the laws of the country. Krehoff agrees on the fact that there is no legitimate authority in the international system. This is because the international system is characterized by the interaction of states, and each state has its own interests and objectives in regard to the interaction. One of the methods in which social scientists use to explain the relations and power in the international system is through the use of liberalism theory. Liberalism is a political concept that advocates for the freedom and rights of individuals. This theoretical framework recognizes the role of the state, as well as other actors in the international system in promoting democracy, freedom of expression, as well as other rights of individuals within the society. Karp observes that this theoretical framework encourages participation in the international system, and for the purposes of promoting peace and stability. On this basis, the international system is characterized by inter-governmental organizations, multi-national companies, and non-governmental organizations. These institutions operating in the international system are responsible for shaping the various policies of states.