Over the past week [November 26- December 4], Russian aviation has carried out 431 sorties from the Hmeymim airbase and conducted strikes on 1,458 terrorist targets including command centers, training camps, ammunition depots, and strongholds. 12-fuel transfer stations ad 8 terrorist controlled oil fields were also destroyed.
Only in the past 48 hours, the Russian warplanes hit two truck convoys near Aleppo and Raqqa, destroying up to 40 terrorist vehicles modified to transport oil products.
At the end of October, the U.S. was sending about 50 special operators to Northern Syria. Then, in December, President Obama ordered the deployment of additional special operations forces to both Iraq and Syria.
The Turkish army reportedly invaded the Syrian territory and took control of the hill Tal Ziyab. Troops crossed the border accompanied by bulldozers to build fortifications. Also, 3 battle tanks, 2 armored infantry fighting vehicles and several SUVs were deployed there.
Considering the location of Tal Ziyab, Turkey wants to cover the smuggling route of the Syrian oil which is taken out of the ISIS-controlled Raqqa. It seems that Ankara has decided to escalate the situation further after the Ministry of Defense of Russia were released pictures and videos of oil delivery convoys at the border between Syria and Turkey.