Many Jews went into hiding, often for a long time, to avoid being picked up by the police or by the Germans. At the peak, 350,000 people were in hiding just in the Netherlands. At first primarily Jews went into hiding, but non-Jews often had a good reason to fear being arrested by the Nazis. Many thousands of men who were called up for the Arbeitseinsatz (forced labor in Germany) went into hiding because they didn’t want to work for the Germans.