In an exclusive interview, a former US soldier fighting Islamic State in Iraq has told 5 live that hundreds of Westerners - including Brits - are ready to join him once the word is given.
Brett Royales - who calls himself a 'Soldier of Christ' and is part of the Christian militia, Dwekh Nawsha - says he is the "head recruiter" for those wanting to fight in Iraq.
In the extraordinary interview with Stephen Nolan, he admits that he is prepared to die for his cause.
The home office says anyone who does travel to Syria or Iraq, for whatever reason, is putting themselves in considerable danger.