The History of Counterintelligence: World War II and the Double Cross System

Sastavnice obavještajnog sustava u suvremenom demokratskom društvu imaju veliku ulogu u zaštiti nacionalne sigurnosti i nacionalnih interesa. Široj je javnosti, njihova djelatnost, opseg i metodologija rada nepoznata, što je razumljivo s obzirom na prirodu rada takvih službi. Među njima, unutar obavještajnog sustava, nalaze se protuobavještajne službe, javnosti još nepoznatiji pojam. U radu su definirani temeljni pojmovi vezani za obavještajni sustav i sustav nacionalne sigurnosti, te detaljnije prikazano i objašnjeno protuobavještajno djelovanje, te njegova uloga u doba mira i rata. Uporabom metode studije slučaja je prikazan sukob dva različita obavještajna sustava: njemačkog u totalitarnoj, a britanskog u demokratskoj državi tijekom Drugog svjetskog rata.Services that constitute the intelligence system in a contemporary democratic society play a great part in the protection of its national security and national interests. However, the majority of the public is unfamiliar with their work, which is understandable considering the (secretive) nature of such services. Among them, inside the intelligence system, are counterintelligence services, as an even more obscure term. This final work presents the basic concepts of intelligence and national security, describing in more detail the field of counterintelligence and its role in war and peace. Utilizing the case-study method, the work presents the conflict between two different (counter)intelligence systems: the German within a totalitarian regime, and the British within a democracy during the course of events of the Second World War