This report is an analysis of the role ULTRA played in the Anglo- American decision to invade Southern France in 1944, as part of the strategy to defeat Germany. It is a reexamination of the conclusions of an earlier Masters Program analysis of the key strategic decisions in light of the revelation of the ULTRA project. The study is based on a literature search of unclassified information concerning ULTRA available at the US Army War College. Although admittedly limited in terms of scope of research, the study describes the role of ULTRA in Anglo-American strategic decision making and draws conclusions concerning its impact on the ANVIL decision. The author concludes that although ULTRA had significant impact on Allied intelligence operations and the intelligence factor in decision making, that intelligence was not the most significant factor in the ANVIL decision.
