It is commonplace that the modern world is more international than at any point in human history. Yet the sheer profusion of terms for describing politics beyond the nation state—including “international,” “European,” “global,” “transnational” and “cosmopolitan,” among others – is but one indication of how conceptually complex this field actually is. Taking a wide view of internationalism(s) in Europe since the eighteenth century, Nationalism and Internationalism Intertwined explores discourses and practices to challenge nation-centered histories and trace the entanglements that arise from international cooperation. A multidisciplinary group of scholars in history, discourse studies and digital humanities asks how internationalism has been experienced, understood, constructed, debated and redefined across different European political cultures as well as related to the wider world.