- Syrian Kurds have become a point of tension between NATO allies Turkey and the U.S.
- The United States has aided Kurdish defenders holding off ISIS in Kobani
- But for 30 years, militants from the Kurdish separatist movement fought a guerilla war
- Their opponent in that fight has been the government in nearby Turkey.
Derik, Kurdish-controlled northern Syria (CNN)It wasn't until jihadist militants mounted a relentless siege of Kobani, a border town within sight of international television cameras, that much of the world realized ethnic Kurds were an effective fighting force within Syria.