Title: Spy counterspy
Subjects: Biography, Secret service, Spies, World War, 1939-1945, autobiography, World war, 1939-1945, secret service, great britain, World war, 1939-1945, secret service, germany, World war, 1939-1945, germany, World war, 1939-1945, great britain
Places: Germany, Great Britain
People: Dusko Popov
Time periods: 1939-1945