Analysis of information sources in references of the Wikipedia article "2020–2021 Ayn Issa clashes" in English language version.
...the death of a Turkish officer and three fighters of the Turkish-backed factions, while SDF lost two fighters
SDF lost five fighters in the same clashes
...three members of the Syrian Democratic Forces (SDF) were injured in Turkish artillery shelling...
...the bombardment targeted a petrol station on the western outskirts of Ain Issa, which injured three people...
...five fighters were killed, four of them from the North Democratic Brigade