5. Examined in details the situation in the Idlib de-escalation area and reaffirmed their determination to fully implement the Memorandum on Stabilization of the Situation in the Idlib De-escalation Area of 17 September 2018. In this regard they expressed their concern with the ongoing violations of the ceasefire regime, and declared that, as guarantors of the ceasefire regime, they would step up their efforts to ensure observance with it, including by enhacing work of the Joint Iranian-Russian-Turkish Coordination Center. They stressed the importance of a lasting ceasefire while underlining the necessity to continue effective fight against terrorism. They also emphasized that under no circumstances the creation of the above-mentioned de-escalation area should undermine the sovereignty, independence, unity and territorial integrity of the Syrian Arab Republic;