Silly reply.
No sane person can think they control ISIS now, or ever did.
Turkey cannot enforce a no fly zone and even if it happened after shooting down all Russians, they couldn't fly either.
Thousands are being killed now. Just what is your point?
Three main groups have tried to use ISIS for their own goals. All three in my opinion have been badly burned for it.
1) Assad released a large amount of ISIS leaders and other radical Islamist leaders on the instructions that they were being released in order to attack the moderate opposition. And for awhile, that 'truce' lasted, with the radical Islamists massively increasing territory, and Assad gaining the narrative he wanted of fighting against extremists.
Rebels, former inmates, Western Intelligence, and jihadists all acknowledge an early effort by Assad to release Islamic extremists largely from the Sednaya prison in order to remove a large portion of the moderate opposition.
Syria's Assad accused of boosting al-Qaeda with secret oil deals
As the uprising against his rule began, Assad switched again, releasing al-Qaeda prisoners. It happened as part of an amnesty, said one Syrian activist who was released from Sednaya prison near Damascus at the same time.
“There was no explanation for the release of the jihadis,” the activist, called Mazen, said. “I saw some of them being paraded on Syrian state television, accused of being Jabhat al-Nusra and planting car bombs. This was impossible, as they had been in prison with me at the time the regime said the bombs were planted. He was using them to promote his argument that the revolution was made of extremists.”
Other activists and former Sednaya inmates corroborated his account, and analysts have identified a number of former prisoners now at the head of militant groups, including Jabhat al-Nusra, ISIS and a third group, Ahrar al-Sham, which fought alongside Jabhat al-Nusra but has now turned against ISIS.
One former inmate said he had been in prison with “Abu Ali” who is now the head of the ISIS Sharia court in the north-eastern al-Qaeda-run city of Raqqa. Another said he knew leaders in Raqqa and Aleppo who were prisoners in Sednaya until early 2012.
These men then spearheaded the gradual takeover of the revolution from secular activists, defected army officers and more moderate Islamist rebels.
...
Rebels both inside and outside ISIS also say they believe the regime targeted its attacks on non-militant groups, leaving ISIS alone. “We were confident that the regime would not bomb us,” an ISIS defector, who called himself Murad, said. “We always slept soundly in our bases.”
2) The second group that used ISIS is the disenfranchised Sunnis of Northern and Western Iraq.
Saddam's Ex-Officer: We've Played Key Role In Helping Militants
Mosul was overtaken by a very small number of ISIS members (estimated at about 800), and a much larger force of Sunni tribes who had been tired of mistreatment by the Shiite led government. Reporters at the time of Mosul's downfall reacted with bewilderment at how a force of 30,000 troops could fall to a force of 800. The truth is that none of the early rise of ISIS would have been possible if it were not for the much larger involvement of disenfranchised local Sunni tribes and former Baathists. Which largely wouldn't have happened if the former Iraqi government hadn't increased persecution so severely of the Sunnis, and ended the highly successful US started Awakening movement.
It did not take long however, before the new ISIS government became even worse than what the Sunni tribes had before.
Islamic State rounds up ex-Baathists to eliminate potential rivals in Iraq's Mosul
3) Turkey - just read earlier posts in the thread.
All three groups have severely been damaged by their support for ISIS.
As for the no fly zones and safe zones, Turkey has been pushing the idea mostly of a 'buffer "safe" zone.' Which would allow them more control of their new land, with more impunity for actions that they would take in that zone. This plan has been pushed for a number of years. The former FSA leader who was hosted in Turkey called for a safe zone in 2012 that would be free of YPG.
The no fly zone, which would be enforced by other countries in the air and border except for a significant amount of Turkish ground troops in the interior, has been estimated to cost about a billion dollars a month. This would basically allow Turkey to carry out a Kurdish exclusion zone in much of the now Kurdish areas in order to create room for refugees, and opposition fighters that Turkey supports (i.e. Turkmen dominated). However, Obama has previously rejected this plan because of the danger of escalation, and the potential of confrontation with Russian air forces. Given recent events that may make the plan less likely.
Which leaves the buffer zone that Turkey initially wanted. Despite the unaddressed problems with it that politicians have often glossed over. The main problem is that Turkey is unlikely to financially support large numbers of refugees unless other countries pay the bill for it.
A good analysis of the history of these plans can be found here:
The Origins of Turkey’s Buffer Zone in Syria
Hillary Clinton, and a number of other US Republican candidates have expressed approval of this idea as a way to stem the flow of refugee migrants without realizing the danger, cost, and implications of the plan.