International
International mostly means something (a company, language, or organization) involving more than a single country. The term international as a word means involvement of, interaction between or encompassing more than one nation, or generally beyond national boundaries. For example, international law, which is applied by more than one country and usually everywhere on Earth, and international language which is a language spoken by residents of more than one country.
International Relations
International Relations (IR) or International Affairs (IA) - commonly also referred to as International Studies (IS) or Global Studies (GS) - is the study of interconnectedness of politics, economics and law on a global level. Depending on the academic institution, it 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. In all cases, the field studies relationships between political entities (polities) such as sovereign states, inter-governmental organizations (IGOs), international non-governmental organizations (INGOs), other non-governmental organizations (NGOs), and multinational corporations (MNCs), and the wider world-systems produced by this interaction. International relations is an academic and a public policy field, and so can be positive and normative, because it analyses and formulates the foreign policy of a given state.
Sociology
Sociology is the scientific study of society, including patterns of social relationships, social interaction, and culture. It is a social science that uses various methods of empirical investigation and critical analysis to develop a body of knowledge about social order, acceptance, and change or social evolution. Many sociologists aim to conduct research that may be applied directly to social policy and welfare, while others focus primarily on refining the theoretical understanding of social processes. Subject matter ranges from the micro-sociology level of individual agency and interaction to the macro level of systems and the social structure.
International Relations
The struggle for power is universal in time and space and is an undeniable fact of experience. It cannot be denied that throughout historic time, regardless of social, economic and political conditions, states have met each other in contests for power. Even though anthropologists have shown that certain primitive peoples seem to be free from the desire for power, nobody has yet shown how their state of mind can be re-created on a worldwide scale so as to eliminate the struggle for power from the international scene. … International politics, like all politics, is a struggle for power. Whatever the ultimate aims of international politics, power is always the immediate aim.
Hans Morgenthau, Politics Among Nations (1948).
Sociology
The second item in the liberal creed, after self-righteousness, is unaccountability. Liberals have invented whole college majors— psychology, sociology, women's studies— to prove that nothing is anybody's fault. No one is fond of taking responsibility for his actions, but consider how much you'd have to hate free will to come up with a political platform that advocates killing unborn babies but not convicted murderers. A callous pragmatist might favor abortion and capital punishment. A devout Christian would sanction neither. But it takes years of therapy to arrive at the liberal view.
P.J. O'Rourke (2007) Give War a Chance: Eyewitness Accounts of Mankind's Struggle. p. xxi
International Relations
Chamberlain's sins were not his intentions, but rather his ignorance and arrogance in failing to appraise the situation properly. And in that failure he was not alone.
Joseph Samuel Nye, Jr.,Understanding International Conflicts - An Introduction to Theory and History (Sixth Edition).
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