This chapter explores the intentional and unintentional ways that martial race discourse was deployed against nationalist claims in both Britain and India. It documents the concrete ways that the 'martial races' themselves were self-conscious constructs of the British imagination in spite of the naturalised racial and gendered language that surrounded them. The chapter charts the uneven impact of martial race discourse across the metropolitan and colonial contexts. One of the neglected sub-plots in the growing appeal of martial race discourse between 1880 and 1914 was its relationship to colonial nationalist movements in Ireland and India. The Fenian crisis was in fact a key moment in the polarisation of Irish Catholic and Scottish soldiers. In contrast to the Indian Army, in the British Army the Highland element of martial race discourse did not function as an exclusionary ideology.