Forced to watch crucifixions, stonings and beheadings and taught to fire machine guns as big as they are: How Islamic State training camps for children are swelling its ranks with junior jihadis

The footage released by the terror group shows small children learning how to assemble the machine guns and also fire them, despite the weapons being as big as them. It also shows youngsters taking an oath pledging an allegiance to the Islamic State as well as a younger boy saying he wants to tell infidels they 'are to be killed'. The footage, posted on social media, adds to concerns that children are being indoctrinated by the masterminds of ISIS so that they grow up into a generation immune to violence and prepared to use it. Other footage has previously shown children in Syria speaking of wanting to become suicide bombers. It is unclear where the latest footage was filmed.