Really now. Is that what the Kurds and the Turkmen are doing, in your opinion? hmm
CotedAzur, they are not enough on their own to defeat ISIS. And they are both pretty focused on specific localised areas rather than wanting to wipe ISIS out.
This is not just me saying it, it was on one of the main news reports last night and it's been in multiple other news sources as well. The U.S. has spent huge amounts of money trying to find and train 'moderate' Syrians (as opposed to ethnic minorities ie Kurds, Turkmen). And they just don't appear to exist. They can't find them, and when they have, they've often defected to ISIS and taken their weapons with them.
The fact is that there is no effective opposition to ISIS except Assad. There's no way that Kurd or Turkmen are going to be able to effectively govern the whole of Syria. Really, we should be backing Assad as the lesser of two evils.
Incidentally, speaking to both Russian and ME friends, they seem to believe that the U.S. deliberately fomented instability in Syria to serve their own interests with regard to energy etc, thinking they could install a friendly government to look after their own interests. Except it's all gone tits up and extremists have taken over and it's bitten us on the arse. Like we did with Afghanistan, Iraq, Libya....
Every time we have been convinced at the time there was a good reason to go to war. And each time we realised later it was just about money, resources and power.