HCSS’s new joint report with Clingendael maps and explores the challenging issues of the European Defence Technological and Industrial Base (EDTIB). Authors Floor Stoelinga, Karen van Loon, Davis Ellison, Ron Stoop and Dick Zandee offer a menu for policymakers to use when considering pressing decisions on long-term investments and capabilities. The study also identifies necessary reforms—including ensuring transparency and preventing waste and fraud, grouping projects more efficiently, and managing demand signals.