What happened in 2014 that made the ongoing civil war in Syria even more complicated?
A. The Arab Spring led to Demonstrations in Syria
B. The Assad Government used chemical weapons
C. ISIS Launched an attack on Syria
D. The United States attacked a Syrian Airbase <-------
Methinks D
I got yall
So the answer is: C ISIS launched an attack on Syria.
A U.S.-led coalition began airstrikes against ISIS in Iraq on August 7, 2014, and expanded the campaign to Syria the following month.