Would it be crazy to suggest these refugees/economic migrants were offered the choice of returning to their own country or to train as soldiers?
When all the young men seem intent on leaving behind their country of birth because of warring factions, religious fanatics and the like, they are surely leaving behind their mothers, fathers, sisters, brothers, uncles, aunts, cousins, grandparents to suffer under the regime they are fleeing.
So who is going to fight back and turn their country around? If they were offered the chance to train and fight and decent wages and equipment and support and the offer of British Citizenship at the end of their conscription would that not at least serve several ends; gainful paid employment for these refugees, a trained fighting force to send against the likes of Isis, Al-Shebab, etc drawn from their own countrymen, the hope of their country being returned to peace and another ideology to replace the jihadists recruiting young disillusioned men?
It might also discourage the purely economic migrant.
just an idea to throw into the pot