International relations is a branch of political science. It represents the study of foreign affairs and global issues among states within the international system, including the roles of states, inter-governmental organizations (IGOs), non-governmental organizations (NGOs), and multinational corporations (MNCs). It is both an academic and public policy field, and can be either positive or normative as it both seeks to analyze as well as formulate the foreign policy of particular states.
Apart from political science, IR draws upon such diverse fields as economics, history, law, philosophy, geography, sociology, anthropology, psychology, and cultural studies. It involves a diverse range of issues, from globalization and its impacts on societies and state sovereignty to ecological sustainability, nuclear proliferation, nationalism, economic development, terrorism, organized crime, human security, and human rights.
The history of international relations is often traced back to the Peace of Westphalia of 1648, where the modern state system was developed. Prior to this, the European medieval organization of political authority was based on a vaguely hierarchical religious order. Westphalia instituted the legal concept of sovereignty, which essentially meant that rulers, or the legitimate sovereigns, would recognize no internal equals within a defined territory and no external superiors as the ultimate authority within the territory's sovereign borders. Classical Greek and Roman authority at times resembled the Westphalian system, but both lacked the notion of sovereignty.
Westphalia encouraged the rise of the independent nation-state, the institutionalization of diplomacy and armies. This particular European system was exported to the Americas, Africa, and Asia via colonialism and the "standards of civilization". The contemporary international system was finally established through decolonization during the Cold War. However, this is somewhat over-simplified. While the nation-state system is considered "modern", many states have not incorporated the system and are termed "pre-modern". Further, a handful of states have moved beyond the nation-state system and can be considered "post-modern". The ability of contemporary IR discourse to explain the relations of these different types of states is disputed. "Levels of analysis" is a way of looking at the international system, which includes the individual level, the domestic nation-state as a unit, the international level of transnational and intergovernmental affairs, and the global level.
What is explicitly recognized as International Relations theory was not developed until after World War I, and is dealt with in more detail below. IR theory, however, has a long tradition of drawing on the work of other social sciences. The use of capitalizations of the 'I' and 'R' in International Relations aims to distinguish the academic discipline of International Relations from the phenomena of international relations. Many cite Thucydides' "History of the Peloponnesian War" as the inspiration for realist theory, with Hobbes' "Leviathan" and Machiavelli's "The Prince" providing further elaboration. Similarly, liberalism draws upon the work of Kant and Rousseau, with the work of the former often being cited as the first elaboration of Democratic Peace Theory. Though contemporary human rights is considerably different than the type of rights envisioned under natural law, Francisco de Vitoria, Hugo Grotius and John Locke offered the first accounts of universal entitlement to certain rights on the basis of common humanity. In the twentieth century, in addition to contemporary theories of liberal internationalism, Marxism has been a foundation of international relations.
[edit] The study of IR
Initially, international relations as a distinct field of study was almost entirely British-centered. In 1919, the Chair in International Politics established at the University of Wales, Aberystwyth (renamed Aberystwyth University in 2008), from an endowment given by David Davies, became the first academic position dedicated to IR. In the early 1920s, the London School of Economics' department of International Relations was founded at the behest of Nobel Peace Prize winner Philip Noel-Baker. In 1927 the first university institution entirely dedicated to the study of IR, the Graduate Institute of International Studies (Institut universitaire de hautes), and offered one of the first Ph.D. degrees in international relations in the country. It is a charter member of the Association of Professional Schools of International Affairs (APSIA), which now has over twenty members. Several USC faculty members have served as president of APSIA over the years. The Committee on International Relations at the University of Chicago is the nation's oldest graduate program in international relations, founded in 1928. Other schools include the School of International and Public Affairs (SIPA) at Columbia University, School of Advanced International Studies (SAIS) at Johns Hopkins University, Georgetown University's Edmund A. Walsh School of Foreign Service, the School of International Relations at the University of St Andrews, and the Fletcher School at Tufts. While schools dedicated to the study of IR have been founded in Asia and South America, IR as a discipline of study remains centered chiefly in the West.
