"First-rate scholarship and methodology. This book adds substantially to our knowledge of the allied war effort during the First World War. It is exceptionally well-grounded and its documentary basis far exceeds any other book dealing with the related topics. Horn breaks new ground in the diversity of his sources and the detail with which he treats the topic This will be a welcome and useful addition to the field." Keith Neilson, Department of History, Royal Military College "This is a very fine, well-argued, and exceptionally well-grounded analysis of the financial aspects of the allied war effort... most useful addition to the scholarly literature."--The Economic History Review, August 2003