Behind the combat operations of World War II, Allied and Axis intelligence services were locked in an impassioned effort to generate the critical advantage intelligence could provide. More than fifty years later, historians continue to piece together details on the array of intelligence activities pursued on both sides that supported the policymaker and battlefield commander alike. While the impressive accomplishments achieved by signals intelligence programs such as ULTRA and the daring human intelligence operations conducted by the famed Office of Strategic Services have garnered the lion's...