The kind of analysis you won't likely find in USian MSM:
Islamic State: Is the US-led campaign flawed? - BBC News
Islamic State: Is the US-led campaign flawed? - BBC News
"I think the coalition strategy against IS was kind of non-existent," says Charlie Winter, a research analyst with the London-based counter extremism think-tank Quilliam.
"From the beginning it was dropping bombs against Islamic State positions, hoping to try and kill a few leaders, take out some artillery positions, that sort of thing.
"But besides that, it has resoundingly failed. Ramadi has just been taken, Palmyra has just been taken, Deir al-Zour airport is about to fall," Mr Winter says.
...
To be fair, the coalition strategy has not been an abject failure.... But for IS, these are manageable losses, irritating but not life-threatening to their cause. Their march across much of the Middle East continues.
The biggest setback to IS was not even a part of coalition strategy, it was the result of a joint Iraqi-Iranian deal.
...
"The US, the EU, the GCC, Turkey and the Iranian axis (Iran, Assad, Baghdad and Hezbollah) as well as the rest of the Syrian opposition are fighting an unco-ordinated campaign against IS."
...
In the short term at least, the prognosis for that part of the Middle East is dire.
"The capture of Palmyra will not be the last setback for the anti‐IS coalition in Syria and Iraq," says Mr Deen.
"Come Ramadan (mid-June), IS' campaign will be relentless and almost unstoppable."