ABSTRACT This paper deals with the study of the challenges that disruptive technologies represent for industrial defence strategies and procurement policies. It focuses on the incorporation of drones into military arsenals and will be based on a study of the Brazilian Navy case. Drones are a disruptive technology both for the defence industrial base and for their implications for military tactics and the organisational structure of the armed forces. The analysis addresses the main difficulties encountered in incorporating these technologies into traditional military structures and acquisition systems. We explore the ways in which defence procurement adapts (or fails to adapt) to the emergence of disruptive technologies: are traditional military organisations and procurement structures capable of introducing disruptive technologies and engaging in the organisational and operating practices required to do so? Some lessons are drawn from this experience: even when the military relevance of drone technology is widely acknowledged and even officially recognized, procurement strategies and practices have not been able to shift from their focus on incumbent suppliers and conventional systems.