ABSTRACT
This chapter analyzes the Allies’ main strategic deception of 1943 – that supporting the invasion of Sicily in July – and the role of the double-cross system in convincing the German military that the true target of the invasion was Greece. The deception plan, known as Barclay, was not a complete success for the double agents, thanks to bad luck but primarily to the incongruity between German methods of intelligence analysis and the British method of passing deceptive material through the double agents. Nevertheless, separate efforts with order-of-battle deception ensured that the double-cross system had a positive effect on Allied fortunes during 1943.
