Direct proof of use
The 2S3 Akatsiya appears in the Syrian Civil War record as a Syrian Arab Army self-propelled artillery system. Bellingcat's review of Syrian Arab Army armored-vehicle losses lists 100 2S3 Akatsiya vehicles in the pre-war SAA self-propelled artillery inventory and states that its loss survey was limited to armored vehicle types actively used by the SAA in the war.
A separate Defense One review of artillery in the Syrian war ties the type to the early Homs bombardment. It reports that U.S. State Department satellite imagery released on February 11, 2012 showed artillery around Homs and southern Syria, and identifies 2S3 self-propelled howitzers among the artillery used in the attack.
Sources: Bellingcat SAA Vehicle Losses 2011-2017, Defense One Syrian War Artillery
Battlefield role
In Syrian government service, the Akatsiya's documented role was conventional tube-artillery fire support. Defense One places it with other government artillery systems around Homs, including M-46 guns, D-30 and 2S1 howitzers, and BM-21 rocket launchers. Human Rights Watch's March 2012 reporting on Baba Amr does not identify the 2S3 by model, but it independently documents the same Homs bombardment environment through satellite imagery, witness accounts, and reporting on surface-delivered explosive weapons in a populated area.
The available sources support government-side fielding and use, not a complete incident-by-incident firing log. Bellingcat's methodology is useful for separating possession from documented wartime use: the article describes a visual-evidence loss database, explains that losses include destroyed, heavily damaged, and captured vehicles, and notes that many potential losses are absent when footage was unavailable or identification was impossible.
Sources: Defense One Syrian War Artillery, Human Rights Watch Homs Satellite Images, Bellingcat SAA Vehicle Losses 2011-2017
Evidence limits
The strongest direct use claim is that Syrian government forces fielded the 2S3 Akatsiya as self-propelled artillery during the conflict, including in early-2012 artillery operations around Homs. The sources do not establish a reliable public count of how many 2S3s remained operational at any given point, nor do they support attributing every Homs strike to the Akatsiya rather than to the broader artillery mix documented in the same reporting.
Opposition possession is not treated here as a confirmed conflict-use claim for this detail record. Public references and battlefield imagery have circulated around captured Syrian artillery, but the source package used for this page directly supports Syrian government and allied use rather than sustained opposition operation of the 2S3.
Sources: Defense One Syrian War Artillery, Bellingcat SAA Vehicle Losses 2011-2017, AOAV Syria Dirty Dozen 2S3