Global Security and Theories

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Global security consists of the measures taken by nations and international organizations, such as the United Nations, to ensure mutual survival and safety. These measures include military action and diplomatic agreements such as treaties and conventions. International and national security are invariably linked. International security is national security or state security in the global arena. With the end of World War II, a new subject of study focusing on global security emerged. It began as an independent field of study, but was absorbed as a sub-field of international relations. Since it took hold in the 1950s, the study of international security has been at the heart of international relations studies. It covers labels like "security studies", "international security" "strategic studies", "peace studies", and others. The meaning of "security" is often treated as a common sense term that can be understood by "unacknowledged consensus". The content of global security has expanded over the years. Today it covers a variety of interconnected issues in the world that have an impact on survival. It ranges from the traditional or conventional modes of military power, the causes and consequences of war between states, economic strength, to ethnic, religious and ideological conflicts, trade and economic conflicts, energy supplies, science and technology, food, as well as threats to human security and the stability of states from environmental degradation, infectious diseases, climate change and the activities of non-state actors. While the wide perspective of international security regards everything as a security matter, the traditional approach focuses mainly or exclusively on military concerns. Theoretical approaches Realism Classical realism In the field of international relations, realism has long been a dominant theory, from ancient military

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