Initially unconvinced that tanks were a serious threat, the High Command ordered just twenty A7Vs, which took part in a handful of actions between March and October, 1918. They suffered from numerous design faults, and Germany actually used more captured British tanks than A7Vs. As it became clear that the tank could play a significant role on the battlefield, Germany began working on designs for both heavy and light tanks, but only a small number of prototypes were completed by the end of the War.