Drawing on a wide range of contemporary social and political thought, the book engages with a feminist dissident movement: namely, former Yugoslavia’s “Women in Black” (Žene u Crnom orŽuC) and its practices of performative mourning for the abjected other. This agonistic mourning involves standing still in public, wearing black, and holding vigils to acknowledge the victims of the “other side.” In performatively occupying the position of the internal enemy, these political actors respond to those estranged as external enemies. By re-positioning their political bodies at the centre of the polis as a means of embodying their own and others’ ambivalent and precarious belonging vis-à-vis its demarcation lines, the activists bring intolerable memories into public view. Hence, they actualize the multilayered modalities of stasis as standing still but also taking the stand as embodied traces of those who had been stripped of their capacity to testify within the nationalist and militarist banality that led to ethno-nationalist violence in what has become the former Yugoslavia. In commemorating those socially instituted as impossible to commemorate, and in upsetting the grounds of mourning as a founding scene of maternal properness in nationalism, these dissident political subjects contest the idealized mourning inscribed in the genealogies of biopolitical normalization and ethno-national militarism. The book addresses agonistic mourning as a critical practice of contesting the power assemblage of sovereignty, biopolitics and nationalism.