Te-Ke Tankette - A WWI hold over, the "tankette" was dated by the beginning of WW2. It often was used as an armored machine gun in support of infantry, and performed well against the disorganized forces of China; who's armored vehicles often consisted of trucks with metal plates welded on them. In some cases it also featured a 37mm cannon, which was grossly underpowered for any sort of tank combat. Very poorly armored it was reported that heavy infantry weapons such as the USA .50 caliber could penetrate it at ranges of up to 600 yards. [LINK]