It has been a week of major developments for Syria's Kurds, the largest non-Arab ethnic minority in the country. On Tuesday, the main Kurdish militia issued a call to arms against factions fighting the President Bashar al-Assad's regime. This followed the killing of Isa Huso, a leading Syrian Kurdish politician, in a car bomb attack near the Turkish border. Huso, a member of the Supreme Kurdish Council was targeted outside his house in Qamishli. The incident raises questions about where the Kurds stand in Syria's confusing and bloody conflict. In the days after Huso's death there have been battles between Kurdish fighters and armed men from groups allied to al-Qaeda. There are many Syrians who fear the Kurds are using the conflict to carve out a separate state but the main Kurdish party says it is simply defending its own people.