Through a wide-ranging interrogation of how the UK relates to international law, this collection demonstrates that the UK’s relationship is, if nothing else, characterised by complexity, contradiction, and constant evolution. Further, by distilling the UK’s relationship to international law into three lenses, the collection highlights not only its distinct aspects but also the interwoven nature of these aspects. Ultimately, this collection speaks to the need for more cross-cutting and inter- or transdisciplinary research that grapples with the multiple actors, obligations, and internal and external dynamics that affect the UK’s relationship to international law. Only through such research will scholarship be able to contribute more deeply and coherently to academic and policy debates. The conclusion to this collection offers an illustration of the interlinked nature of the UK’s relationship to international law and thoughts on future research in the hope of inspiring independent and collaborative efforts.