![FILE PHOTO: A Syrian national flag flutters next to the Islamic State's slogan at a roundabout where executions were carried out by ISIS militants in the city of Palmyra, in Homs Governorate, Syria in this April 1, 2016 file photo. Omar Sanadiki/Files/File Photo](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/2WEAGORIKOVBRKNLMUDHXO7VAU.jpg?smart=true&auth=dacee5b4760b287f582271a3b1ac21c198654583f622c692b3ee896be2e56db9&width=400&height=225)
A Syrian national flag flutters next to ISIS's slogan at a roundabout where executions were carried out by ISIS militants in Palmyra. Omar Sanadiki
A Syrian national flag flutters next to ISIS's slogan at a roundabout where executions were carried out by ISIS militants in Palmyra. Omar Sanadiki
Syria: The festering threat of informal ISIS prisons
Only a handful of more than 800 foreign ISIS fighters have been transferred back to their home countries
Hashem Osseiran
01 March, 2020