October 2009
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Author Posting ©Taylor & Francis, 2009

This is the author's version of the work. It is posted here by permission of Taylor & Francis for personal use, not for redistribution. The definitive version was published in The Journal of Strategic Studies, Volume 32 Issue 5, October 2009.
DOI:10.1080/01402390903189394 (http://dx.doi.org/10.1080/01402390903189394)