Tracing the parallel development of Juliet Mitchell's Psychoanalysis and Feminism (1974), and Mary Kelly's epic conceptual art work, Post-Partum Document (1973–1979) to the History Group, a feminist reading group in London, I ask what these influential works offer to thinking on sexual and gender politics today. Closely connected to this question, I explore what the turn to the problem of war by both Mitchell and Kelly in more recent times might reveal about the usefulness of psychoanalytic feminism to war discourse.