Israel is the main promoter of the war in Syria 

Despite not appearing in the foreground Israel is the main promoter of the war in Syria.
In my opinion (it must be said) Israel is largely responsible for the outbreak of war in Syria (especially through their influence in the US but also promoting Islamic hyperterrorism by stealth but decisive).
The Israeli fascism has been the main enemy of Syria during the past 65 years.
The government of Israel is satisfied  of the hardships that the Syrian people is suffering and especially of the weakness of the Syrian government that benefits Israel both politically and militarily.
The Golan Heights, Syrian territory, has been occupied by Israel for almost 50 years.
Israel directly influence the US leadership through the powerful Zionist lobby in the Congress and indirectly also influences presidential decisions.

The US military aid to Israel today is 38,000 million dollars in a span of 10 years, not counting the diplomatic and commercial support.
The prolongation of the war in Syria and the war in Iraq and the pressure on Iran, work for the benefit of Israeli expansionism.
Meanwhile blood continues to be shed in Syria and Iraq ...
D.A.