Kurdish Peshmerga fighters are lighting-up the battlefield to protect themselves from night attacks by the Islamic State of Iraq and the Levant (ISIL). Employing a tactic used by the US in Vietnam, the Peshmerga are using floodlights to identify approaching ISIL fighters who use the cover of darkness to sneak up on Peshmerga positions. Al Jazeera's Sue Turton reports from the Iraq-Syria border.