The Coalition’s mission is to defeat Isis in Iraq and Syria. The Coalition does not seek to fight Syrian regime, Russian, or pro-regime forces partnered with them, but will not hesitate to defend Coalition or partner forces from any threat.
The Coalition presence in Syria addresses the imminent threat Isis in Syria poses globally. The demonstrated hostile intent and actions of pro-regime forces toward Coalition and partner forces in Syria conducting legitimate counter-ISIS operations will not be tolerated.
The Coalition calls on all parties to focus their efforts on the defeat of Isis, which is our common enemy and the greatest threat to regional and worldwide peace and security
This is a blatant lie. An extraordinary piece of double-speak even by the Empire’s usual standards. The CIA has a programme to arm ‘moderate rebels’ in the South of Syria. The aim of this operation is to build a force to fight President Assad.  (This link also includes the chilling admission attributed by the Washington Post to a ‘US Official’ that the aim of US policy in Syria is to “prolong the war”).
The above blatant lie is now the currency of the day and reported without question by the Western press.
See also: http://www.stopwar.org.uk/index.php/news-comment/1490-how-the-uk-is-secretly-helping-to-stoke-the-flames-of-war-in-syria