As you can see, Turkey has begun shelling Aleppo in what is indeed a very serious escalation that will likely prompt a Russian response. "Shelling was reported at Menagh air base, a former Syrian Air Force facility that Kurds seized from Islamist rebels just days ago, and at three other positions between the airport and Turkish border," The Independent reports. "The air base has been a key target for several parties in the Syrian civil war since 2012, being besieged by rebels for almost a year until it was seized by a coalition including an early form of Isis and...