Security dilemma

The security dilemma, also referred to as the spiral model, is a term used in international relations and refers to a situation in which actions by a state intended to heighten its security, such as increasing its military strength or making alliances, can lead other states to respond with similar measures, producing increased tensions that create conflict, even when no side really desires it.

The term was coined by the German scholar John H. Herz in his 1951 book Political Realism and Political Idealism. At the same time British historian Herbert Butterfield described the same situation in his History and Human Relations, but referred to it as the "absolute predicament and irreducible dilemma". In John Herz's words, the security dilemma is "A structural notion in which the self-help attempts of states to look after their security needs tend, regardless of intention, to lead to rising insecurity for others as each interprets its own measures as defensive and measures of others as potentially threatening".

A frequently cited example of the security dilemma is the beginning of World War I. Supporters of this viewpoint argue that the major European powers felt forced to go to war by feelings of insecurity over alliances of their neighbours despite not actually wanting war. Furthermore, Germany's fear of fighting war on two fronts led it to the formulation of the infamous Schlieffen Plan, which specified a particularly accelerated mobilization timetable. The onset of German mobilization, in turn, put pressure on other states to start mobilizing early as well. However, other scholars dispute this interpretation of the origins of the war, contending that some of the states involved really wanted the conflict.

The security dilemma is a popular concept with cognitive and international relations theorists, who regard war as essentially arising from failures of communication. Functionalist theorists affirm that the key to avoiding war is the avoidance of miscommunication through proper signaling.

The security dilemma has important relationships with other theories and doctrines of international security. Part of the strength of the security dilemma theory is that it subsumes and is consistent with a number of other theories. Other theories can be considered in terms of the security dilemma.

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