The British Mark V tank was an upgraded version of the Mark IV tank. It was first deployed in 1918, used in action during the closing months of World War I, and in the Allied intervention in the Russian Civil War on the White Russian side, and by the Red Army, after they were captured. The tank was improved in several aspects, chiefly the new steering system and engine, but it fell short in other areas such as mechanical reliability and its insufficient ventilation. However, the Mark V was successful, especially given its limited service history, and primitive design. Designer M Bergman
