The aim of this article is to situate archaeological approaches to modern conflicts within a framework of conflict memory and commemoration. A critical appreciation of historical archaeology as a commemorative practice requires a firm grounding in memory theory, specifically the formation and contestation of memory narratives. This article offers a detailed analysis of the relevant theories and demonstrates their applicability in the contested archaeology of the Nazi era in Berlin. On the basis of this critique I argue that archaeological work on contested sites offers a unique and powerful forum for socially engaged interdisciplinary research.