Just when you thought Syria's long-running civil war couldn't get any more complicated -- it did.

taunting Russia and telegraphing military action in Syria after a On Wednesday, President Trump tweeted a message after a suspected chemical attack in the war-torn country.

an uprising against President Bashar al-Assad, The war may have started out asagainst President Bashar al-Assad, but now it's a free-for-all

ISIS has lost control of most of its territory after it came under attack from all sides.

But victories over ISIS mean that the other combatants are now freer to attack each other.

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