According to a Dutch intelligence report, there are approximately 80 or more Dutch children living under ISIS in Syria and Iraq. Women in ISIS territories often become pregnant and as a result the Dutch authorities have no exact statistics.
According to the Dutch intelligence services the children are seen as cubs that will grow as lions of the ISIS self-proclaimed caliphate. Therefore, they are trained at a very young age at special ISIS schools. The children receive Sharia education as well as military training within a group known as Cubs of the Caliphate.