Now playing Next United Kingdom British "mercenaries" join fight against Islamic State militants 24/11/2014
Now playing Next Iraq Airstrikes continue while Muslim parents worry at ISIL propaganda on home front 21/11/2014
Now playing Next France Shock in France after new revelations of French jihadists in Syria 20/11/2014
Now playing Next France French ISIL militants urge fellow Muslims to launch attacks back home 20/11/2014
Now playing Next Iraq Deadly suicide bomb attack in the capital of Iraq's Kurdistan region 19/11/2014
Now playing Next Israel Israeli prime minister and Mahmoud Abbas condemn synagogue killings 18/11/2014
Now playing Next Iraq ISIL: 'Strong possibility' that French jihadist features in Peter Kassig execution video 17/11/2014
Now playing Next USA Washington sees progress in fight against ISIL but predicts long campaign 13/11/2014