Comparing: Somua S35 vs. Vickers Medium Mk. III

Good firepower, armor protection, and mobility made the S35 one of the best tanks of its time. However, the small turret forced the commander to handle multiple tasks at once: searching for enemy targets, aiming and reloading the gun, and coordinating the actions of the crew. This workload reduced his situational awareness and decreased the vehicle’s effectiveness on the battlefield. By the time France capitulated on June 22, 1940, a total of 427 vehicles had been manufactured.

British medium tank also known as the Vickers "16-tonners". Three prototypes were produced by Vickers from 1926 through 1931. According to some sources, three more tanks were manufactured in 1933 and remained in service through 1938 but never saw action.