On 18 March 2020, as part of a ceasefire arrangement following a Syrian government offensive in Idlib, Turkish troops entered the de-escalation zone to reopen the M4 highway previously blocked by HTS and other jihadist factions.[29] On the same day, an Ahrar al-Sham commander was killed after a roadside bomb went off while he was driving near Jisr al-Shughur.[30]