By Benedetta Argentieri TIL KOCHER, Syria (Thomson Reuters Foundation) - Every night before 27-year-old Arin goes to bed, she hangs her Makarov, a Russian semi-automatic pistol, from a steel coat rack by the entrance to her one-bedroom apartment in a small, dusty town on the Syrian border with Iraq. The pistol was an award for her success on the front line in the battle to protect Kurdish areas of **rtheastern Syria and is a far cry from her life a year ago when she was working as a nurse in Cologne in Germany. ...