Lifting the Fog: The Secret History of the Dutch Defense Intelligence and Security Service (1912-2022) is unique as a general body of knowledge about the history of the Dutch intelligence and security services since 1913. The chapters alternate between a general historical overview and a number of case studies spread out over the more-than-a-century long history that taken together give a good insight into the main functions of a middle-size military intelligence service as The Netherlands has known. The MIVD is giving the author access to the archives of the MIVD and its predecessors, which normally are closed to outsiders.