My observations are that Russia has rightly intervened in Syria, effectively stopping a "foreign" contrived regime change. No state has any legal right to meddle in another state's internal affairs. More so, no state has any authority or right to change the government of another state. Such an act is aggressive, illegal, immoral, undemocratic and goes against the very fabric of respecting the legitimate right of all independent states to proceed in their internal matters as they see fit. As Such, America, Britain and Saudi Arabia are equally guilty of this criminal act.
One has to be blind as a bat, not to see the results of "foreign" contrived regime changes in Iraq and Libya. Both countries have suffered immeasurable carnage, death and destruction.
As things stand in Syria right now, it is clear that outsiders like America, Britain, Saudi Arabia and Iran are fighting their own war on soil which is not their own. Iran is equally as guilty as Saudi Arabia, America and Britain to use the internal conflict in Syria as a means to advance their own agendas. The Shia-Sunni divide has been exploited to it's fullest by all parties mentioned. Except for Russia which has openly opposed the hegemony of America and Britain. For far too long has this gone unanswered, where countries like Iraq, Libya, Yemen, Somalia and Afghanistan have been reduced to rubble. Countless innocent lives lost and for what? For that reason, I believe Russia has done the right thing in intervening in Syria, where Americans, Brits, Saudis and others have already created hell in Syria. Russia has shown exceptional restraint, resolve and transparency in its role in Syria. Be it when it's aircraft was shot down by Turkey. Or when American aircraft bombed areas controlled by Syrian-Russian forces.
The time for lies, deceit and playing games is over now. No more shall the world remain ignorant and blind to the lies that have been spread in the name of war and destruction. Lies told about Gulf of Tonken, Iraq-WMD or Libya will no longer a tactic that will work to fool the world into thinking that it's the truth.