A secret to IS success: Shock troops who fight to the death
“Bearded and wearing bright blue bandanas, the Islamic State group’s ‘special forces’ unit gathered around their commander just before they attacked the central Syrian town of al-Sukhna. ‘Victory or martyrdom,’ they screamed, pledging their allegiance to God and vowing never to retreat.”
Source: A secret to IS success: Shock troops who fight to the death – US News