"The vast majority of the existing literature on the emerging role of the EU as a non-proliferation actor exhibits only the most tertiary engagement with theory. This collection intends to redress this imbalance by placing the role of the EU in the non-proliferation of nuclear weapons within an analytical framework inspired by the emerging body of literature on the performance of international organisations (IOs). The volume provides an in-depth exploration of the EU's performance in key fields of non-proliferation: the multilateral strand of the NPT and the technology control regimes, bilateral relations - with a focus on the transatlantic partnership - and EU internal governance"--