1. American Chamber of Commerce to the European Union, 2018. The European Defence Action Plan: challenges and perspectives for a genuine transatlantic defence and industrial relationship. Available from: http://www.amchameu.eu/system/files/position_papers/final_website_edap_with_recommendations.pdf.
2. ASD, 2018. Industry’s views on the proposal for a regulation establishing the European Defence Fund. Available from: https://www.asd-europe.org/sites/default/files/atoms/files/ASD%20general%20remaks%20on%20EDF_website_1.pdf.
3. Process-Tracing Methods
4. The Commission: boxed in and constrained, but still an engine of integration