Direct proof of use
The Royal Ordnance L7 appears in the 2014 Russia-Ukraine War through Ukrainian Leopard 1A5-family tanks. Germany, Denmark, and the Netherlands announced a Leopard 1A5 initiative for Ukraine in February 2023, and Germany's final public support list later recorded 103 Leopard 1A5 tanks delivered to Ukraine with spare parts and Leopard 1 ammunition.
The weapon connection is the tank's main armament. KNDS lists the Leopard 1A5 armament as 105 mm L7A3 with two 7.62 mm machine guns, and Ukraine's Ministry of Defence describes the Leopard 1A5 in Ukrainian service as an older-generation tank equipped with the 105 mm Royal Ordnance L7 gun.
Sources: BMVg Leopard Initiative, German Military Support for Ukraine, KNDS LEOPARD 1 A5, Ukraine MoD German Weapons Received
Delivery and training
The transfer lane was organized as a Danish-German-Dutch refurbishment, logistics, training, spare-parts, and ammunition package rather than a direct new-production gun program. The German Defence Ministry said the first refurbished Leopard 1A5 tanks would be delivered within months of the February 2023 announcement, while the Danish Armed Forces later stated that Danish instructors trained Ukrainian tank crews on Leopard 1A5 tanks in Germany during summer and autumn 2023.
Conflict reporting on the first Danish deliveries placed the first ten Leopard 1A5 tanks in Ukraine on September 8, 2023, and identified their primary armament as the rifled Royal Ordnance L7A3 105 mm cannon. Those reports support treating the L7A3 as a fielded gun installation in Ukrainian service, while the official donor and Ukrainian sources establish the transfer, training, and Ukrainian-service context.
Sources: BMVg Leopard Initiative, Danish Armed Forces Ukraine Support, Army Recognition First Danish Leopard 1A5s, Ukraine MoD German Weapons Received
Battlefield role
Ukraine's Ministry of Defence frames the Leopard 1A5 as a mobile, relatively easy-to-maintain platform for infantry fire support and engaging lightly armoured vehicles in positional and defensive warfare. For the L7 page, that means the documented conflict role is the 105 mm gun's use as tank-mounted direct-fire armament, not as independent towed artillery or a separate Ukrainian weapon system.
The L7A3 gives the transferred Leopard 1A5 a NATO-standard 105 mm ammunition ecosystem and a legacy anti-armor/direct-fire role, but the sources distinguish this from the newer and more heavily armed Leopard 2 family. The available public sources document transfer, training, fielding, and intended tactical employment more clearly than they document individual firing incidents by date and location.
Sources: Ukraine MoD German Weapons Received, German Military Support for Ukraine, KNDS LEOPARD 1 A5