Russia is allies with Hezbollah and Syria, who both aided Iran in killing Marines? Really? And Hezbollah with their hero child killer Kantar and Syria of course, transports Iranian missiles to be shot at Israel.
The Assads allowed the Jihadis have camps and attack Americans from Syria during the US invasion, killed the Lebanese Christian Prime Minister and harbored Saddam’s brother until they were forced to give them up.
You may be OK with ISIS/Al-Nusra, Qatar, Saudi, and neo-Ottoman Turkey, but many think otherwise.
The best case scenario which is next to impossible is that:
(1) Somehow Assad is toppled and Syria is reborn as vibrant stable secular democracy.
(2) Saudi, Qatar, Turkey, and Obama finally come to their senses, and set out to exterminate ISIS.
(3) Gulf countries vow to stop exporting their Wahabism.
(4) Iraq Shiites, Sunnis, and Kurds band together and with Obama full military support, drive out Iranians from Iraq.
(5) Syrians slaughter Hezbollahs to extinction.
(6) "Evil phony Christian Putin" is driven out of power and hung from a lamp post in Moscow's Red Square.