"There will be a confrontation between the far right and the Muslim world."
Mr Calvar's comments have come as the former MI6 boss Richard Dearlove also said that Europe faced a "populist uprising" if Governments do not take control of the migrant crisis.
Security experts in Germany have also warned Chancellor Angela Merkel that the middle class was becoming increasingly radicalized because of her open borders migrant policy.
*****************************
He said that the situation in France is on such a knife edge that it could just take one more major Islamist terror attack to lead to a huge right-wing backlash.
Speaking to the leading French newspaper, Le Figaro, Mr Calvar said: "This confrontation I think it will take place.
More @ Express