- On August 18, Russia reported that Idlib militants violated the ceasefire regime in Greater Idlib 25 times: 14 – in Idlib province, 6 – in Latakia province, 1 – in Hama province, 2 – in Aleppo province
- On August 18, YPG artillery shelled Afrin city. Three people reportedly were killed
- On August 18, SAA artillery shelled positions of Turkish-backed forces in al-Barah
- On August 18, clashes between SAA and former rebels were reported in Daraa city
- On August 18, several SAA soldiers reportedly were killed near the villages of Nafa’a in Daraa
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