Interactive / Middle East & North Africa 15 May 2020 Idlib Between September 2015 and May 2020: A Timeline Share Facebook Twitter Email Linkedin Whatsapp Save Print 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. Related Tags Syria More for you Commentary / Middle East & North Africa The SDF Seeks a Path Toward Durable Stability in North East Syria Commentary / Middle East & North Africa U.S. Sanctions on Syria: What Comes Next?