Direct proof of use
The ZSU-23-4 Shilka entered the 2014 Yemen Civil War through the collapse and seizure of Yemeni state military sites. Al Jazeera reported in October 2014 that Houthi forces looted five Shilka guns from the 310th Brigade in Amran and twelve Shilka armored vehicles, with 300,000 rounds, from the First Armored Division camp after the takeover of Sanaa.
A January 2015 report by the Abaad Studies and Research Center similarly estimated that Houthi forces held Shilka and self-propelled howitzer guns among the heavy weapons taken from state camps. Al Jazeera's later account of the 2015 al-Dhale fighting said anti-Houthi resistance forces captured Shilka combat vehicles from Houthi and allied forces, which places the vehicles in Houthi-aligned field formations beyond the original storage-site seizures.
Sources: Al Jazeera Looted Weapons List, Abaad 2014 Bitter Harvest, Al Jazeera Popular Resistance Milestones
Timeline
The public record begins with Houthi seizures in September and October 2014, when military sites in Sanaa and Amran yielded heavy weapons including Shilka systems. By early 2015, Yemeni research and regional reporting described Houthi-aligned forces as holding a large share of former state military capacity, including Shilka guns.
During the 2015 fighting in southern Yemen, Shilka vehicles appear in reporting on battlefield captures from Houthi and allied forces in al-Dhale. A later al-Thawrah article, written from a Houthi-aligned perspective, described ZSU-23-4 guns as part of the surviving ground-based air-defense weapons used against Saudi-led coalition air raids in the first and second years of the war.
Sources: Al Jazeera Looted Weapons List, Abaad 2014 Bitter Harvest, Al Jazeera Popular Resistance Milestones, Al Thawrah Air Defense Account
Narrative
The Shilka's Yemen record is mainly a captured-equipment and short-range air-defense story rather than a documented foreign-transfer case. West Point's Combating Terrorism Center describes Ansar Allah's 2014 state capture as absorbing brigade sets of tanks, artillery, and anti-aircraft weapons, a broader pattern that matches the Shilka-specific equipment lists published by Al Jazeera and Abaad.
The available sources do not establish a precise unit-by-unit order of battle for each Shilka after capture. They do support three narrower claims: Houthi forces acquired named Shilka quantities from former Yemeni military sites in 2014, Shilka vehicles were present with Houthi and allied forces during the 2015 ground war in al-Dhale, and Houthi-aligned media later described ZSU-23-4 guns as among the air-defense weapons used against coalition aircraft.
Sources: CTC Houthi War Machine, Al Jazeera Looted Weapons List, Abaad 2014 Bitter Harvest, Al Jazeera Popular Resistance Milestones, Al Thawrah Air Defense Account