International Relations, the study and practice of political relationships among the world’s nations, especially their governments. International relations may also refer to the interactions between nongovernmental groups, such as multinational corporations (companies that operate in more than one country) or international organizations such as the Red Cross or the United Nations (UN).
International relations is a broad and complex topic both for countries engaged in relationships with other nations, and for observers trying to understand those interactions. These relationships are influenced by many variables. They are shaped by the primary participants in international relations, including national leaders, other politicians, and nongovernment participants, such as private citizens, corporations, and nongovernmental organizations. They are also affected by domestic political events and nonpolitical influences, including economics, geography, and culture. Despite all of these other influences, the primary focus of international relations is on the interactions between nations.
To understand these interactions, scholars look at the world as a system of nations whose actions are guided by a well-defined set of rules. Scholars call this system the interstate system. The interstate system has existed for less than 500 years and is based on a common understanding of what a nation is and how it should treat other nations. But recent changes in technology and international norms have caused some scholars to question whether this system will continue in the future, or be replaced by some other system of relationships that is not yet known.
Until the 1970s the study of international relations centered mainly on international security studies—that is, questions of war and peace. Scholars believed a nation’s military power was the most important characteristic in determining how that nation would relate to others. As a result, scholars focused on the relative military strength of one nation compared to others, alliances and diplomacy between nations, and the strategies nations used to protect their territories and further their own interests. See Warfare.
Since the 1970s the importance of economics in international relations has grown and the study of international political economy has received increased attention. Scholars in this field believe that the primary force driving the interaction between nations is economic, not military. They focus on trade and economic relations among nations, especially the political cooperation between nations to create and maintain international organizations which benefit all nations involved, such as the World Bank and the International Monetary Fund. See Foreign Trade; Free Trade.
In both security studies and international political economy, scholars strive to explain patterns of conflict and cooperation among nations. Conflicts among nations are inevitable since their political and economic aims and interests often diverge. Cooperation does not refer to the absence of conflict but to the ability of nations to peacefully resolve their differences in a way that is acceptable to all parties involved. When cooperation fails, conflicts often escalate into coercion and ultimately war.

Source:-
US Encarta Encyclopedia ® 2008
Library of Congress Catalog

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