Following World War II, Sweden faced the looming threat of the Soviet Union and its drive to spread communism. This led to the formation of a resistance movement involving Sweden's intelligence service, the employers' association and the labour movement. The stay-behind network was fully legalised in 1955 and continued its clandestine work until the mid-1990s, with the mission of keeping communism – and the Soviets – out of Sweden. Drawing on extensive archival research and interviews with key figures, author Johan Wennström peels back the layers of secrecy surrounding the stay-behinds.
