While the European Union aims at developing a common foreign policy and a common arms market, European states still collaborate poorly in the field of actual defence procurement. National firms (each furtively supported by its national government) often compete with each other as much as with American ones, European initiatives compete with Transatlantic ones. At the same time the relations between the European Defence and Security Policy (EDSP) and the North Atlantic Treaty Organisation (NATO) remain a much debated issue. While the positions of the larger member states (France, UK and Germany) are well known in this field, the views and practices of the smaller member states are hardly discussed in the literature. This paper explores the geopolitical and geo-economical dimensions of policy making regarding military technology and production in the Netherlands. A neutral country until German invasion and occupation (1940-45), the Netherlands is a founding member of the European Communities and NATO, and a close ally of the US and the UK. Around 2000 it was in absolute terms the sixth spender in the EU regarding both military Research & Development and Equipment Procurement. What are the geopolitical and geo-economical arguments of the Dutch government to procure a new generation of jet fighters and to participate in the Joint Strike Fighter programme to develop and produce the Lockheed Martin-F-35 Lightning II rather than to purchase the French Rafale or the Eurofighter? What does this mean for the further development of the EU as a territorial actor in international affairs? ; Bien que l’Union européenne œuvre à une politique étrangère commune et un marché commun de l’armement les États européens ne collaborent que médiocrement dans le domaine de l’acquisition des armements. Les firmes nationales sont souvent en compétition les unes avec les autres (chacune secrètement assistée par son propre gouvernement), au moins autant qu´avec les firmes américaines, des initiatives européennes rivalisent avec des ...