The shadowy undercover work of the American OSS and the British SOE, usually behind enemy lines or close to the action, makes a story of extraordinary daring and great personal heroism. In a compilation of actual events in World War II, this book demonstrates the important role of these two undercover organizations in the Allied victory. Using first-hand research with veterans and original archive material, it describes many covert actions and tactics: codebreaking, blockade running, guerilla action, bombing missions, sniper work, assassinations, running double agents, training work and recruitment methods in both the American OSS and the British SOE.