Direct proof of use
Improvised drones are directly documented in the 2014 Russia-Ukraine War through U.S. Army professional analysis, Ukrainian official procurement statements, and British government transfer statements. Army University Press described Ukrainian forces using commercial small UAS for reconnaissance and battlefield awareness, then modifying them to drop antitank rounds, grenades, and mortar rounds on Russian positions, vehicles, and personnel.
Army University Press later described the war's second full-scale year as a period in which both Ukraine and Russia greatly expanded FPV small-UAS production and use. The same analysis described Ukrainian and Russian use of FPV strike drones, Ukrainian coordination of FPV drones with larger reconnaissance UAVs, and Ukrainian FPV drones used against Russian reconnaissance UAVs.
Sources: Army University Press Grenade-Dropping Quadcopters, Army University Press Drone Warfare Year Two
Timeline
The public evidence shows a progression from improvised commercial quadcopters and munition-dropping adaptations to scaled FPV strike systems. Army University Press reported that Ukrainian forces used commercial and modified small UAS in the early full-scale phase for observation, fire adjustment, and direct munition drops.
By 2023 and 2024, FPV and other small drones had become an organized battlefield category. Ukraine's president said in December 2023 that Ukraine planned to produce one million FPV drones in 2024, while the United Kingdom and Latvia announced a drone capability coalition in February 2024 to supply Ukraine with thousands of FPV drones for situational awareness and explosive attacks.
Sources: Army University Press Grenade-Dropping Quadcopters, Ukraine President One Million FPV Drones, UK MOD Drone Coalition, Army University Press Drone Warfare Year Two
Narrative
In this conflict, improvised drones are a weapon class rather than a single design. The class includes commercial quadcopters fitted with release mechanisms, field-built or volunteer-assembled FPV airframes, and small UAVs adapted to carry improvised warheads or dropped munitions. Their roles overlap: the same small-drone ecosystem supports reconnaissance, target spotting, harassment attacks, anti-armor strikes, and attacks on trenches, vehicles, and supply movement.
Ukrainian use is the most explicitly documented in public official sources and professional military analysis. The UK Ministry of Defence described FPV drones supplied to Ukraine as systems used for situational awareness and explosive attacks on enemy positions, armored vehicles, and ships. Ukraine's Ministry of Defence later reported that more than 100,000 FPV drones had been delivered to military units through DOT-Chain Defence, showing the institutional scale that followed earlier volunteer and improvised drone adaptation.
Russian use is also documented in the military-analysis sources. Army University Press described Russian efforts to organize FPV production through entities such as the Sudoplatov Battalion and Project Archangel, and described Russian and Ukrainian forces alike producing and employing FPV drones during the full-scale phase. Those sources support Russian use of improvised or rapidly adapted small drones, while the official supply and procurement statements in this record directly support Ukrainian supply and use.
Sources: UK MOD Drone Coalition, Ukraine MOD DOT-Chain FPV Delivery, Army University Press Drone Warfare Year Two, Army University Press Grenade-Dropping Quadcopters