Defeat of ISIL

Hi everyone, to be honest this was probably the biggest fear I ever had, and I'm glad ISIL had never entered my country. I'd like to bring this subject up, if that's okay with everyone. In fact, their defeat is very much appreciated and is a good news to most of us, including those not living in the Middle East, etc.

Well, it seems like they have been finally defeated and unlikely to take control of territories again. When they had like half of Iraq and Syria back in 2014 or so, I was kinda worried. I followed closely, including th TV news and the like. When I learned Mosul was liberated - I was so happy for the Iraqi army, even though my country has no relations with Syria or Iraq. What do you guys think about the defeat of ISIL, and do you think they will return and control territories again? My opinion remain the same - the Iraqi and Syrian armies need to watch closely and make sure they don't take control of their countries again. I'm sure they have learned a lesson or two by now, after losing that many civilians in these wars.