The Theory and Practice of double cross -- Origins of the Double-Cross System -- Autumn 1940 -- Organisation for Controlling the Double-Cross System -- The Agents' traffic in 1941 -- Experimental Plans in 1941 -- The Agents in 1941 -- Developments in
1942 -- Work and History of Agents in 1942 -- Activities in 1943 -- Deception to Cover the Normandy Landings and the Invasion of France -- Use of the System in the Last Year of the War -- Conclusion.
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