Idlib Between September 2015 and May 2020: A Timeline

Idlib is the last rebel-held territory in Syria, nine years after the start of the conflict. A Russian-backed regime offensive against the rebel stronghold halted when Russia and Turkey negotiated a ceasefire on 5 March. Now, Ankara is sending reinforcements to its outposts, making the current standoff untenable. 

Starting from Russia’s intervention in 2015, this timeline tracks the developments and diplomatic failures that led to the present situation.