Wikipedia:Today's featured article/May 25, 2016

Operation Copperhead was a small military deception operation run by the British during the Second World War. Conceived by Dudley Clarke, it was intended to mislead German intelligence as to the location of General Bernard Montgomery (pictured) just before the 1944 invasion of Normandy. The German high command expected Montgomery, one of the best-known Allied commanders, to play a key role in any cross-channel bridgehead. Clarke and the other deception planners reasoned that a high-profile appearance outside England would suggest that an Allied invasion was not imminent. An appropriate look-alike was found, M. E. Clifton James, who spent a short time with Montgomery to familiarise himself with the general's mannerisms. On 26 May, James flew to Gibraltar and then to Algiers, making appearances where the Allies knew German intelligence agents would spot him, but the operation did not appear to have any significant impact on German plans. James later wrote a book about the operation, I Was Monty's Double, which was adapted into a film, with James in the lead role.