Syria and Russia are determined to end the war before the agreed upon ceasefire set for this Friday.
ISIS supply routes from Turkey to Aleppo and Raqqua have been cut off. Aleppo is on the verge of falling. Hundreds of rebels are surrendering. Syrian forces have advanced toward Raqqua have captured hilltops surrounding Raqqua and is poised to launch an assault shortly. If Raqqua is liberated, ISIS is done. All moderate rebel forces who have pledged allegiance to ISIS will quickly fold as well.
Turkey is trying to distract Russian operations by shelling Syrian forces north of Aleppo. Furthermore, Turkey has staged an "invasion force" on Syrians northern border to preoccupy Syrian defense forces.
Saudi Arabia has also sent planes to Insirlik, Turkey for possible operations. Pledged 150k troops for a US-led ground operation.
Trainloads of military equipment has been seen leaving Gulf States (Kuwait, Qatar) and Saudi Arabia.
Russia and Syria have less than a week to defeat ISIS before USA and its allies are prepared to rescue ISIS.
Edit1: Ceasfire date is Friday, 19 FEB 2016