Until the day of the Velser Affaire today evokes emotions: his communist resistance workers from Velsen and environs in WWII betrayed and what role the Dutch government played in London while? It's one of the questions that historian Bas von Benda-Beckmann (Zürich 1976) studied commissioned by the Research Foundation Velser Affaire (SLEEP). Von Benda-Beckmann promoveerde in 2010 thesis on the German historiography regarding Allied bombing. In 'The exercises Affaire’ He discusses two dozen cases of alleged killings, corruption, betrayal and cover-ups politics that played during and after the war in the region Kennemerland. It becomes clear once again how complex dilemmas were from people who did resistance work. Von Benda-Beckmann has an eye for the- and postwar tensions between the local Communists and conservative authorities and debunked conspiracy theories. The book includes an extensive series of notes, bronnenopgave en bibliography, people- in zakenregisters in twee fotokaternen.