Critics have generally dismissed the military novel as simply a minor version of the historical novel. This article reassesses the genre by examining what the Quarterly Review saw as the first ‘military novel’, Thomas Hamilton's Youth and Manhood of Cyril Thornton (1827). It argues that, while his novel is modelled on Scott's historical novels, Hamilton also established an entirely new aesthetics, based on the soldier's suffering body. Reading this aesthetic in relation to a biopolitics of life emerging in the long eighteenth century, the article proposes that the novel constructs a new version of military honour for the modern nation.