In Mosul, ISIS fighters have daubed the letter ‘N’ for Nazarene, or Christian, on the walls of Christian-owned houses before rounding up the residents and stripping them of their money, jewellery and even mobile phones. ‘It's a very difficult time, Mosul is empty of Christians,’ says Father Andrzej Halemba, Middle East coordinator for Aid to the Church in Need. ‘Two thousand years of beautiful history, where the Christians and Muslims for centuries had helped each other, but now it’s the end of Christianity in Mosul. It's dreadful news.’