Direct proof of use
The TOS-1A Solntsepyok was publicly confirmed in the 2014 Russia-Ukraine War during the opening weeks of Russia's 2022 full-scale invasion. The United Kingdom Ministry of Defence said on March 9, 2022 that Russia's Ministry of Defence had confirmed use of the TOS-1A weapon system in Ukraine, and RFE/RL reported the same statement with Reuters reporting.
U.S. Army Operational Environment reporting later described the TOS-1A as deployed from the outset of the Ukraine conflict, with cameras along the Belarus-Ukraine border recording TOS-1A systems entering Ukrainian territory in February 2022. The same reporting says Russian forces used TOS-1A launchers in eastern Ukraine to target and destroy enemy positions and fortifications, and that Ukrainian forces used at least one captured TOS-1A near Kreminna in Luhansk region during the 2023 counteroffensive.
Sources: UK MOD TOS-1A Ukraine Statement, RFE/RL Britain Says Russia Admits TOS-1A Use, U.S. Army OE Thermobaric Weapons Report
Timeline
In February 2022, the TOS-1A appeared in the invasion force entering Ukraine from the Belarus direction, according to U.S. Army OE reporting. On March 9, 2022, the UK Ministry of Defence publicly cited Russian confirmation of TOS-1A use in Ukraine.
By July 2023, Ukrainian forces were also documented firing a captured Russian TOS-1A. RFE/RL photographed and reported the Ukrainian Army's Da Vinci Battalion firing the launcher toward Russian positions near Kreminna on July 7, 2023.
Sources: U.S. Army OE Thermobaric Weapons Report, UK MOD TOS-1A Ukraine Statement, RFE/RL Captured TOS-1A Near Kreminna
Narrative
In Russian service, the TOS-1A functioned as a short-range thermobaric multiple rocket launcher attached to maneuver forces rather than as conventional divisional artillery. U.S. Army OE reporting describes TOS-1A systems as often attached to Russian maneuver brigades for operations against fixed defensive positions, especially in urban or mountainous terrain.
The system's battlefield use in Ukraine centered on close-range fire support and assault preparation. U.S. Army OE reporting says Russian forces used the TOS-1A in eastern Ukraine against enemy positions and fortifications, while also noting that the launcher's limited range required it to move close to the forward line of troops, making it vulnerable to Ukrainian targeting and capture.
Ukrainian use was tied to captured Russian equipment rather than a regular procurement channel. RFE/RL's July 2023 photo report identified a captured TOS-1A in the Da Vinci Battalion's hands near Kreminna and showed Ukrainian forces firing it toward Russian positions during the counteroffensive phase.
Sources: U.S. Army OE Thermobaric Weapons Report, RFE/RL Captured TOS-1A Near Kreminna
