Defensive realism

Defensive neorealism is a structural theory in international relations that is derived from the school of neorealism. The theory finds its foundation in the political scientist Kenneth Waltz's Theory of International Politics in which Waltz argues that the anarchical structure of the international system encourages states to maintain moderate and reserved policies to attain national security. In contrast, offensive realism assumes that states seek to maximize their power and influence to achieve security through domination and hegemony. Defensive neorealism asserts that aggressive expansion as promoted by offensive neorealists upsets the tendency of states to conform to the balance of power theory, thereby decreasing the primary objective of the state, which they argue to be the ensuring of its security. Defensive realism denies neither the reality of interstate conflict or that incentives for state expansion exist, but it contends that those incentives are sporadic, rather than endemic. Defensive neorealism points towards "structural modifiers," such as the security dilemma and geography, and elite beliefs and perceptions to explain the outbreak of conflict. Defensive neorealism is a structural theory that is part of structural realism, also known as neorealism, which is a subset of the realist school of thought in International Relations theory. Neorealism therefore works from realism's five base theoretical assumptions as outlined by offensive neorealist scholar John J. Mearsheimer in "The False Promise of International Institutions". These assumptions are: The international system is anarchic. States inherently possess some offensive military capability, which gives them the ability to hurt and possibly destroy each other. States can never be certain about the intentions of other states. The basic motive driving states is survival. States think strategically about how to survive in the international system. These five assumptions drive neorealism's belief that state survival is attained through "self-help".