The Allies took advantage of the breather afforded them by the success of the Operation Bodyguard and Operation Fortitude deceptions to build a powerful beachhead in Normandy. From there, they eventually broke out to liberate France and Western Europe. After Paris was freed from the Nazi yoke, Dusko Popov was sent to the French capital to help establish a British intelligence network. When Yugoslavia turned communist after the war, there was no future for the playboy Popov back in his home country, so he decided to stay put in the West.
Popov was awarded the Order of the British Empire for his wartime exploits – a nice accompaniment to the medals given him by the Germans during the conflict – and eventually became a British citizen. He prospered as a businessman, and had no intention to reveal his wartime activities. In 1972, however, John Masterman published The Double Cross System in the War of 1939 to 1945, a deep dive in British wartime intelligence. That convinced Popov to write up his own account, and in 1974 his autobiography, titled Spy Counter-Spy, was published. A playboy to the end, he died in 1981, after years of heavy smoking and drinking, and many, many, women.
Where Did We Find This Stuff? Some Sources and Further Reading