Bringing together new research by leading scholars, this volume rethinks the role played by militaries in politics. It introduces new theories of military politics, arguing against the inherited theories and practices of civil-military relations, and presents rich new data on senior officership and on the intersection of military politics and military operations. As the first volume in Berghahn Books' Military Politics series, it provides a blueprint for a new research paradigm dedicated to tracing how militaries shape their political environments, focusing particularly on the core democratic questions raised by politically-effective (and ineffective) militaries.