Direct proof of use
The 2S34 Chosta appears in the 2014 Russia-Ukraine War record as a Russian-operated 120 mm tracked gun-mortar and as captured Russian equipment in Ukrainian hands. Army Recognition identifies the type as deployed in Ukraine by the Russian army for combat operations, citing a Russian Ministry of Defense video published on February 16, 2023.
Ukrainian and Ukrainian-focused reporting gives later battlefield evidence. Defense Express reported in January 2024 that Ukrainian forces hit a Russian 2S34 Hosta in the Avdiivka direction with FPV drones, while The New Voice of Ukraine reported in May 2024 that another rare Russian 2S34 was destroyed by FPV drones in Donetsk Oblast and geolocated north of Maryinka.
Sources: Army Recognition 2S34 Hosta, Defense Express Avdiivka Hosta, NV Donetsk Hosta Destruction
Captured examples
Captured-equipment evidence places the Chosta in the first months of the full-scale invasion. The National Defence University of Ukraine states that Ukrainian defenders captured a first 2S34 Hosta on March 14, 2022, and a second vehicle in Chernihiv Oblast on April 2, 2022.
Open-license photographs from the Prague exhibition of captured Russian equipment add visual context for the captured-equipment trail. A Wikimedia Commons file dated July 14, 2022 identifies a captured 2S34 Khosta self-propelled mortar displayed in Prague as part of an exhibition of Russian military equipment damaged and captured during the 2022 Russian invasion of Ukraine.
Sources: National Defence University 2S34 Hosta, Captured 2S34 Khosta Prague image
Battlefield role
In Russian service, the Chosta filled a mobile fire-support role rather than a high-volume artillery role. Its 120 mm 2A80-1 gun-mortar combined mortar-style high-angle fire with a turreted 2S1-family tracked chassis, and public reporting repeatedly describes the type as rare in Russian inventories.
Defense Express linked the limited number of public battlefield references to the small Russian fleet, citing The Military Balance 2022 estimate of 50 vehicles before the full-scale invasion. The documented conflict trail therefore consists mainly of captured vehicles and individual struck or destroyed systems rather than a broad, regularly reported deployment pattern.
Sources: Defense Express Avdiivka Hosta, Army Recognition 2S34 Hosta