They are the US-led coalition's main ally in the fight against Isis, but as Turkey keeps bombing them, the sense of betrayal is growing.
Jonathan Rugman on the west’s distinctions between “good Kurds” and “bad Kurds”.
On 16 September, the northern Syrian town of Kobane came under siege. Since then, reports state that more than 150,000 refugees have flooded into Turkey.
Will a vote on action in Syria be next?
How it feels to watch the news and see that your old school friends are jihadists fighting with Islamic State.
The campaign that British MPs are being asked to join will almost certainly be ineffective, carry on for years and cost us billions of pounds.
The PM believes that there is "no legal barrier" to action, but wants to "proceed on the basis of consensus".
Today, parliament will vote on the UK using airstrikes against Islamic State in Iraq.
The US risks amplifying the message that IS and similar groups have been trying to spread for years.
The war in Syria is made of several smaller wars that sometimes run in parallel and sometimes cross over, like railway junctions on the express to hell.
The Prime Minister, speaking at the UN, has said that Britain will join in confronting the militant group.
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