UN Security Council Resolution 2254 calls for a "ceasefire" in Syria. A "ceasefire", unconditioned according to the resolution, would be for the whole country but would exclude certain groups:
I quote from the latter statement which essentially reiterates the above:[r]eiterates its call in resolution 2249 (2015) for Member States to prevent and suppress terrorist acts committed specifically by Islamic State in Iraq and the Levant (ISIL, also known as Da’esh), Al-Nusra Front (ANF), and all other individuals, groups, undertakings, and entities associated with Al Qaeda or ISIL, and other terrorist groups, [...] and to eradicate the safe haven they have established over significant parts of Syria, and notes that the aforementioned ceasefire will not apply to offensive or defensive actions against these individuals, groups, undertakings and entities, as set forth in the 14 November 2015 ISSG Statement;
All members of the ISSG also pledged as individual countries and supporters of various belligerents to take all possible steps to require adherence to the ceasefire by these groups or individuals they support, supply or influence. The ceasefire would not apply to offensive or defensive actions against Da’esh or Nusra or any other group the ISSG agrees to deem terrorist.I read the UN Security Council Resolution 2254, and I must agree with Bernhard that key provisions are being ignored by the US, Saudi Arabia, and Turkey. As long as the US public continues to have faith in corporate media, the latter can construct any "reality" they want in pursuit of Empire interests and it will be believed. That is precisely what is happening today with regard to Syria.
On this subject you might be interested in reading an article entitled "Aleppo: The Corporate Media Credibility Gap" from OffGuardian.