Tensions between civil and military authorities over issues such as budgets and strategic posture are unavoidable in pluralistic societies. Scholars of Civil-Military Relations (CMR) have identified a range of practices through which civil-military contestation occurs, and examined their implications for issues such as military effectiveness. This literature, however, has yet to incorporate critical approaches to knowledge into its analysis. Seeking to fill this gap, this article explores how the British military's presentation of its professional knowledge has been increasingly shaped by the political context of British defence policy. More specifically, it argues that the British armed forces’ presentation of opaque imaginations of future war in military doctrine has sought to entrench the role of Defence in an environment of increasingly integrated governmental responses to security challenges. To do this, the article focuses specifically on two concepts that have become increasingly significant in the British defence establishment's articulation of its professional authority and strategic purpose – Multi-Domain Integration (MDI) and the Integrated Operating Concept (IOpC). The article therefore contributes to the literature a fresh perspective of the role of military doctrine and epistemic practices in civil-military contestation, as well as a critical account of the politics of knowledge in British defence.

This paper contributes to current debates on the politicization of international politics by examining party-political contestation of peace and security missions. It is guided by two inter-related questions, (a) to what extent deployment decisions are contested amongst political parties and (b) what drives such contestation. We examine data from a new data set on parliamentary votes on deployment decisions in France, Germany, Spain, and the United Kingdom and from the Chapel Hill Expert Survey. Against conventional wisdom and in an effort to address the often-overlooked role of political parties, we find that military deployments have been systematically contested amongst political parties across Europe. Further, we find that contestation is driven by the left/right axis, as opposed to newer cleavages captured here by the so-called gal/tan axis. We also find evidence that patterns of contestation depend on parties’ positions in government or opposition, a factor we relate to bureaucratic and international pressures on the parties in office, and to political opportunities for opposition parties.

Defence cooperation between Western European countries has increased considerably since the end of the Cold War. An analytical distinction can be made between political and economic cooperation, the latter having been neglected by political scientists. This study advances the debate on economic cooperation by identifying sources of variation in the European Union (EU)-15 countries’ membership rate in cooperative armaments fora aimed at restructuring the demand side of European defence from 1996 to 2006. By combining six models from three different schools of thought, the risk of confirmation bias through intra-paradigmatic reasoning is reduced. At the same time, fuzzy-set analysis opens up the space for data-driven combination effects. Two distinct combinations form sufficient paths leading to high rates of membership. Most importantly, intentions to create collective defence technological and industrial benefits combine with trust in partners’ ability and integrity to form an essential combination of conditions for governments to pursue cooperation on armaments.