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.
The so-called “war on terror” has become a clash within each civilisation, in which every side pretends to fight Isis in order to hit its true enemy.
As the roots of Isis grow deeper, support for the group is increasing.
Ultimately this is a question about the world in which we want to live.
Liberals often worry about the need to protect citizens from the state. Yet in the age of global terror, the risk posed by failed states is by far the greater danger.
British intervention in Syria must be backed up with a multinational plan to help bring stability to the region in the long-term.
The full text.
Jeremy Corbyn has forced three government U-Turns - and destroyed the case against war, says Dave Ward.
Islamic State has gripped the imagination of western politics, but many Syrian rebels are more concerned by Assad. If we are to intervene in Syria, we must make it clear he has no long-term role to play.
We should be in no doubt that our intervention will greatly increase the chances of Islamic State striking in a big way.
Robin Cook's former adviser explains why he's convinced by the case for bombing in Syria
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