A report published by MI6 boffins found that Britain has the largest number of returned fighters in the whole of western Europe.
About 850 scumbag terrorists left the UK to join the murderous death cult in Syria, with only half being fully accounted for.
Only popular tourist destinations Turkey and Tunisia are believed to have more with 900 and 800 jihadis, respectively.
ISIS boffin Kyle Orton, from the Henry Jackson Society, said the jihadi cult have been preparing for this defeat for months.
He added while it’s “not yet clear” how exactly ISIS will “play this off” – there is a possibility of this triggering terror attacks in the West.
Read more in the Daily Star