International Relations includes many subject matters.
International relations ( IR ) or international affairs , depending on academic institution , is either a field of political science , an interdisciplinary academic field similar to global studies , or an entirely independent academic discipline in which students take a variety of internationally focused courses in social science and humanities disciplines . The scope of international relations comprehends globalization , diplomatic relations , state sovereignty , international security , ecological sustainability , nuclear proliferation , nationalism , economic development , global finance , as well as terrorism and organized crime , human security , foreign interventionism , and human rights , as well , as , more recently , comparative religion .