13 years of civil war
Zahran Alloush, founder of Islamist rebel group Jaysh al-Islam (army of Islam), the group's deputy leader, and other officials die in Russian airstrikes on a meeting east of Damascus, according to the Syrian Observatory for Human Rights. Jaysh al-Islam was one of the opposition groups at the December 10th conference that agreed on principles to guide peace talks, which both Bashar al-Assad and Russia rejected.
Sources: BBC Irish Independent The News Hub