Direct proof of use
The RPG-26 appears in the 2011 Syrian Civil War record through FDD's Long War Journal reporting on the Quds Brigade, also known as Liwa al-Quds. In an October 2016 article, FDD reported that the Palestinian pro-government militia had wielded RPG-26 launchers and captioned a conflict photograph as showing a Quds Brigade fighter holding an RPG-26.
The same article places Liwa al-Quds with Syrian government-aligned forces in Aleppo province. It describes the militia as drawn from the Palestinian diaspora in Aleppo province, operating as an auxiliary to pro-regime forces since 2013, and involved in the late-September 2016 fighting around Handarat Camp and Kindi Hospital north of Aleppo.
Sources: Russian influence evident in Palestinian militia in Syria
Timeline
Liwa al-Quds formed part of the pro-government fighting around Aleppo before the RPG-26 photograph appeared in public reporting. FDD's September 2016 account described the group as a predominantly Palestinian paramilitary unit participating in pro-Syrian-regime operations in Aleppo, fighting alongside the Syrian Arab Army and Iranian-led expeditionary forces during the Handarat battles.
FDD's October 2016 follow-up connected that same Aleppo campaign to Russian influence on the militia and identified the RPG-26 in Liwa al-Quds hands. The evidence supports conflict fielding and possession by Syrian government-aligned militia forces; it does not establish a separately documented RPG-26 firing, target, casualty effect, or transfer chain.
Sources: Pro-government Palestinian militia fights in Aleppo, Russian influence evident in Palestinian militia in Syria
Narrative
In Syria, the RPG-26 is best documented as a shoulder-fired anti-armor launcher in the hands of a pro-government auxiliary militia rather than as a system tied to a named engagement. The launcher itself is a disposable 72.5 mm anti-tank rocket launcher firing a single HEAT rocket, which places it in the close-range infantry anti-armor and point-target fire-support role.
The documented operator context is Liwa al-Quds, a Palestinian militia aligned with the Syrian government in Aleppo. FDD described the group as a pro-regime auxiliary active since 2013 and reported that its fighters were involved in the September 2016 Handarat Camp fighting north of Aleppo. Its October 2016 article identified an RPG-26 in a Quds Brigade fighter's hands while discussing Russian influence and battlefield support around the militia.
The public evidence should be read narrowly. It directly supports RPG-26 fielding by a Syrian government-aligned militia during the civil war, but not a confirmed firing incident, verified stockpile quantity, or official Syrian pre-war inventory.
Sources: Russian influence evident in Palestinian militia in Syria, Pro-government Palestinian militia fights in Aleppo, RPG-26