Direct proof of use
The documented Syrian Civil War use of the Project 11661 Gepard-class frigate centers on the Russian Navy ship Dagestan. On 7 October 2015, Russian officials said a Caspian Sea strike group fired 26 cruise missiles at targets in Syria; USNI News reproduced the Russian Ministry of Defense statement identifying Dagestan, Project 11661, as the flagship of that strike group.
The Washington Institute also identified Dagestan as the Gepard-class frigate in the Caspian Flotilla group and described the missiles as 3M-14T Kalibr-NK land-attack cruise missiles fired toward targets in Raqqa, Idlib, and Aleppo provinces.
Sources: USNI News Caspian Strike Report, Washington Institute Caspian Missile Analysis
Timeline
The public record for Dagestan's Syrian Civil War use is clearest for 7 October 2015. Defense News reported that four Russian warships in the Caspian Sea launched a reported 26 Kalibr SS-N-30A cruise missiles at Syrian targets nearly 1,000 nautical miles away, and that the Gepard-class light frigate Dagestan took part in the operation.
Contemporary reports also described the missiles' route across Iranian and Iraqi airspace. USNI News noted a Kurdish Peshmerga video that appeared to show cruise missiles passing over northern Iraq, while also stating that U.S. officials would not independently confirm all Russian claims about the strikes.
Sources: Defense News Caspian Fleet Analysis, USNI News Caspian Strike Report
Narrative
Dagestan's role in Syria was a naval long-range strike mission rather than a deployment into Syrian waters. The ship operated from the Caspian Sea with three Buyan-M corvettes, using the Kalibr-NK land-attack missile system to engage fixed targets inside Syria from a standoff launch area.
The strike was part of Russia's intervention on the Syrian government side. The sources agree on the basic use claim: Dagestan was one of the Caspian Flotilla ships connected to the 7 October 2015 missile attack. They differ in emphasis, with Russian statements claiming all assigned targets were hit and later U.S.-linked reporting questioning whether every missile reached Syria.
Sources: Washington Institute Caspian Missile Analysis, Defense News Caspian Fleet Analysis, USNI News Caspian Strike Report
