In early 1941, aggression toward Jews increased. In Amsterdam the WA shamelessly became more brutal and violent. On 22 and 23 February 1941, a razzia took place in Amsterdam, in which 425 Jewish men were rounded up. The protest against the razzia led to the February Strike.
In the ordinance of 22 October 1940, the nazis described who was a Jew and who was not. On 10 January 1941, compulsory registration followed. People registered as
Jews had a ‘J' stamped in their personal identification card.
During the deportations, which began in July 1942, the local police, special trained units, and the Voluntary Auxiliary Police were deployed to track down Jews in hiding. Dutch civilians also helped in finding Jews in hiding. These ‘Jew hunters' received 7.50 Dutch guilders per reported Jew.
The Germans tried various methods to expose people to National Socialist ideology. Posters especially were an important instrument of propaganda. Posters were often vandalised on purpose by passersby or changed into call for resistance.