Two Muslim brothers have been taken into care after their father groomed them as “religious warriors”.
Social workers found the boys, aged between 11 and the mid-teens, lived in a “radicalised Islamic household”.
They were “at potential risk of dangerous activities” because of the parenting of their father born in Uganda, the High Court heard.
Photographs seen by the Family Division judge Mrs Justice Parker showed the boys in Islamic “fighter” poses wielding swords.
The family, including a girl in her mid-teens, were stopped at a ferry port in Harwich, Essex three years ago amid police fears they were bound for ISIS-held Syria.