This article examines the production, uses, and reuses of cultural landscapes within contexts of warfare and political change. Ancient concerns over defense and security have led societies to construct fortification features involving extensive modifications to landscapes in many parts of the world. Social memories are often tied to these militarized landscapes, with embedded meanings and values that persist and morph through time. Due to the potential commemorative power offered by militarized landscapes, leadership strategies related to political regeneration can make use of these built environments. Consequently, the significance of these locales is not limited to military functions, as they can be appropriated by later societies for political agendas. The Co Loa site of modern-day Vietnam’s Red River delta, for instance, illustrates such a locality where warfare and politics intersect. Still standing largely intact today, the site’s monumental system of fortification features dominates the local landscape, reflecting broad alterations of the surrounding terrain. Although the system was originally put into place during the Iron Age, later societies have capitalized on the site’s physical and ideological properties for various military and sociopolitical agendas.