|Abstract from DBPedia||
International relations (IR), international affairs (IA) or international studies (IS) is the scientific study of interactions between sovereign states. In a broader sense, it concerns all activities between states—such as war, diplomacy, trade, and foreign policy—and relations with and among other international actors, such as intergovernmental organisations (IGOs), international non-governmental organisations (INGOs), international legal bodies, and multinational corporations (MNCs). International relations is widely considered a subdiscipline of political science. However, IR draws considerably upon international economics, international law, world history, and cultural anthropology. In the US, IR is frequently one of the sub-fields within political science departments, but some academic institutions characterize it as an independent or multidisciplinary. While international politics has been analyzed throughout much of history, IR did not emerge as a discrete field until the turn of the 20th century, initially as an extension of political science; it was first distinguished as its own discipline in 1919, when it was offered as an undergraduate major by Aberystwyth University in the United Kingdom. Over the next decade, similar studies were established at the University of Oxford and London School of Economics, which led the field to develop its independence and prominence. After the Second World War, international relations burgeoned in both importance and scholarship—particularly in North America and Western Europe—partly in response to the geostrategic concerns of the Cold War. The collapse of the Soviet Union and subsequent rise of globalization in the late 20th century presaged new theories and evaluations of the rapidly changing international system. Into the 21st century, as connections between states become progressively more complex and multifaceted, international relations has been incorporated into other fields, such as economics, law, and history, leading to a convergent, interdisciplinary field.
国際関係（こくさいかんけい、英語: International relations, IR）とは、国家と国家の間に生じるさまざまな関係を指す。 二国間関係から多国間関係までを包括する概念であり、政治的、経済的、社会的、文化的及び軍事的な関係性を含んでいる。これを研究する学問に国際関係論がある。