Through the combination of digital humanities methods, including social network analysis and GIS (Geographic Information Systems), the Allied funding for de Gaulle’s movement and the internal resistance will be unveiled, for the first time, in its entirety. The painstaking reconstruction of the financial records of the Free French and their lines of subsidy is a novel approach that sheds new light onto the financial networks between French, British and American officials who made this financing possible. This illuminates the complexity of international relations in a time of war. Using a combination of economic and accounting analysis, as well as primary-sourced historical research, this book distinctively applies sociological methodologies to this long-held question. This book will be of interest to those in economics, economic history, finance, accounting, digital humanities, modern history, international relations, political science and war studies.