The reason for the April-May strike (1943) was the announcement that former Dutch soldiers would be recalled to go to prison camps in Germany where they would have to work. This led to a strike that started in Hengelo and spread throughout the country. The German occupiers responded with oppressive violence. With the declaration of Martial Law enforced by the police (Polizeistandrecht), every form of resistance could be punished by death without due process. Eighty strikers were executed and the strike ended on 3 May 1943.