This chapter reconstructs the formation of the Irish-Argentine community within the wider histories of nineteenth-century Argentine modernisation and migration to the Río de la Plata. It situates the Irish experience within the state’s project of constructing a Europeanised nation, tracing how discourses of whiteness, progress, and civilisation shaped the migration policies and imaginaries of the period. Through close attention to key processes such as the Conquista del Desierto, (the “Conquest of the Desert”) the legal promotion of European immigration, and the development of institutions like the Irish Hospital and The Southern Cross, the chapter examines how the Irish community negotiated its position between privilege and marginality. Drawing on works by scholars including McKenna, Cruset, Trinchero, Devoto, and Riobó, it highlights how faith, class, and language became central to the consolidation of diasporic cohesion and respectability. The “Dresden Affair,” in this context, is revisited not only as a tragic episode of failed migration but as a moment that exposes the fissures within the community and the contradictions of the national project that welcomed it. Ultimately, the chapter reframes the Irish-Argentine trajectory as a mirror to Argentina’s foundational modernity—revealing how migration, racial ideology, and transatlantic aspiration converged to define both the nation’s identity and its enduring tensions between inclusion and exclusion.