Examining the Effect of Security Environment on U.S. Unilateral Military Intervention in Civil Conflicts

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This study focuses on how perceived security environment affect U.S. unilateral, military intervention in civil conflicts, using the concept of Bayesian learning to illustrate how threat perceptions are formed, how they change, and how they affect the U.S. decision to intervene militarily in civil conflicts. I assess the validity of two primary hypotheses: (1) the U.S. is more likely to intervene in civil conflicts with connections to a threatening actor or ideology; and (2) the U.S. is more likely to intervene in civil conflicts for humanitarian motives in a less threatening security context. To test these hypotheses, I compare U.S. ... continued below

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Aubone, Amber August 2011.

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  • Aubone, Amber

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This study focuses on how perceived security environment affect U.S. unilateral, military intervention in civil conflicts, using the concept of Bayesian learning to illustrate how threat perceptions are formed, how they change, and how they affect the U.S. decision to intervene militarily in civil conflicts. I assess the validity of two primary hypotheses: (1) the U.S. is more likely to intervene in civil conflicts with connections to a threatening actor or ideology; and (2) the U.S. is more likely to intervene in civil conflicts for humanitarian motives in a less threatening security context. To test these hypotheses, I compare U.S. military intervention in three temporal contexts reflecting more threatening security contexts (Cold War and post-9/11) and less threatening security contexts (1992-2001). Results of logit regression analysis reveal that a conflict’s connection to a threatening actor or ideology is the most statistically and substantively significant determinant of U.S. military intervention in civil conflicts, both in more and less threatening security contexts. They also indicate that humanitarian motives are not a statistically significant determinant of U.S. military intervention in civil conflicts, even in a more benign security environment. These findings imply that U.S. unilateral military intervention is reserved for more direct national security threats, even those that are less grave, and that the perception of the U.S. as “global cop” may be misleading, at least in terms of unilateral military intervention.

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  • August 2011

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  • May 17, 2012, 9:47 p.m.

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  • Nov. 14, 2014, 3:12 p.m.

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Aubone, Amber. Examining the Effect of Security Environment on U.S. Unilateral Military Intervention in Civil Conflicts, dissertation, August 2011; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc84164/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .