The Clash of Ideas in World Politics is an excellent book. It possesses a persuasive, detailed argument and compelling case study evidence that spans 500 years of diplomatic history. It will be of enduring interest to analysts of international relations.
The book has numerous strengths, though three in particular stand out. First, the book reveals the shortcomings of realist theories of international relations by documenting the centrality of ideologies to leaders’ foreign policies. Specifically, Owen demonstrates that ideologies are frequently critical to how leaders’ understand the threats to their most important domestic and international interests. These threat perceptions, in turn, will tend to have major effects on states’ core security policies, including choices of allies and enemies and efforts to promote by force particular institutions and beliefs in other countries. This last set of choices is the primary focus of Owen’s analysis.