ISIS claims it is ‘stronger than ever’ with a ‘new generation’ of boys trained and ready to fight

Triumphant Iraqi soldiers parade the streets of Mosul as Raqqa lies in ruins.

Once ruling an area the size of the UK, ISIS now clings on to just 10 per cent of its failed proto-state.

Experts believe it will reincarnate as an underground insurgency while gathering support in Africa – but ISIS leaders are far from lowering the black flag of the Caliphate.

New propaganda claims the group is ‘stronger than ever before’ because a generation of young boys is ready and willing to fight to the death.