One of Churchill’s most controversial decisions during the Second World War was to switch SOE support in Yugoslavia in 1943 from the Cetniks loyal to the exiled Royal Government to backing Tito and his Communist Partisan guerrillas. It led to a Communist regime in Yugoslavia which lasted until Tito’s death in 1980, and the nationalistic sentiments he had suppressed exploding into ethnic violence in the Balkan wars of the 1990s.