This paper focuses on the period of the political separation of the Netherlands and Belgium (1830-1839). Both countries were in a state of war for almost a decade, which resulted in massive troop deployments along their borders and the militarisation of the landscape. The principal objects of study are the Dutch army camps at Rijen and Oirschot near the Belgian border, which to date have barely received any scholarly attention. Both camps were almost 2 km across and offered accommodation to up to 12,000 infantry soldiers. They will be studied from an archaeological-historical perspective, focusing on the spatial and social dimensions of the camps and their place in the wider landscape. The camps are representative of the final stage of pre-industrial warfare in Europe, which is characterised by a continuation of many eighteenth century and Napoleonic traditions.