Russia and Ukraine have relied heavily on artillery to batter each other's forces. AdvertisementAdvertisement"This is a concerning trend, as over time it will likely significantly improve Russian artillery," write the report's authors, Jack Watling and Nick Reynolds. Russian artillery doctrine is still largely based on extensive analysis of World War II data to determine how many shells were needed to achieve a specific effect. REUTERS/Maxim Zmeyev"First, Russian forces lack the ammunition to sustain this volume of fire," the RUSI report said. According to the RUSI report, Russia continues "to rely heavily" on multiple-launch rockets, 120-mm mortars, and "other imprecise systems," and "corner-cutting in the production of its munitions is becoming apparent."

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Persons: Jack Watling, Nick Reynolds, ANDREY KRONBERG, —, Stalin, Operation Bagration, Maxim Zmeyev, Andrey Rusov, Katyusha, Michael Peck Organizations: Service, Britain's Royal United Services Institute, Getty, REUTERS, Russian Defense Ministry, Defense, Foreign Policy, Twitter, LinkedIn Locations: Russia, Ukraine, Wall, Silicon, Western, Moscow, Volgograd, AFP, Berlin, Russian, Saratov, US, Soviet, Forbes