The term “Carden-Loyd tankette” actually refers to a series of vehicles which were developed in the inter-war years. The Mark VI was the most successful, being built under licence in many countries.
In 1925, Carden-Loyd Tractors Ltd, a company owned by Sir John Carden and Vivian Loyd, created the Carden-Loyd One-Man Tankette. The idea was developed, and from the Mark IV onwards, became a two-man vehicle. The vehicles showed enough promise that Vickers bought Carden-Loyd Tractors in 1928. The Mark VI tankette became a great success, with over 300 seeing service in the British army, and more sold abroad. In the British army, the tankette saw service primarily as a machine gun carrier, but it was also used as a light gun tractor and mortar carrier.
It later formed the basis of the British Universal Carrier. Several other countries used it as a basis for development of their own tankette designs. Five Dutch Carden-Loyd tankettes saw action in Crete, fighting German paratroopers in May 1940.