The Panzer III and Valentine tanks were both produced in large numbers during World War II, but their production and availability varied.
The Panzer III was Nazi Germany's longest-serving and most-produced tank, accounting for about one-quarter of the tanks produced in Greater Germany and Czechoslovakia. Production began in April 1937, reaching 108 deliveries per month by November 1940. By August 1943, 6,094 Panzer IIIs were assembled, with various models and modifications being produced throughout the war.
The Valentine tank was Britain's and Canada's longest-serving and most-produced tank. Production started slower, but ultimately surpassed that of the Panzer III. From May 1940 to May 1944, 7,260 Valentine tanks were produced, with 5,840 British and 1,420 Canadian. The Valentine was also exported to the Soviet Union, where it served alongside British and Canadian forces.
Both tanks were widely available on the respective fronts, with the Panzer III being the most numerous German tank type in North Africa and the Valentine being the predominant British tank type in North Africa and Italy. Despite their widespread use, both tanks were eventually overshadowed by newer tank models as the war progressed.