Decked out in his US army-issued fatigues and a lip stud shining from his mouth, the young American fighter cuts an unusual figure in the northern Iraqi town of Al-Qosh. He served in the US army in Baghdad in 2006-2007 and has now returned to fight the Islamic State (ISIS) jihadist group with Dwekh Nawsha, a Christian militia whose name is an Assyrian-language phrase conveying self-sacrifice, reports AFP. The 28-year-old, who goes by the pseudonym Brett, has become the figurehead of an emerging movement of foreigners coming to Iraq to support Christian groups. Bearing a tattoo of a machinegun on...