Comparing: Cruiser Mk. I vs. Cruiser Mk. III vs. Tetrarch

The first cruiser tank in the British arsenal. Development was started in 1934 by Vickers. A total of 125 vehicles were mass-produced from 1936 through 1937.

The vehicle was developed on the basis of the M1931 Christie tanks, purchased by the British Army in 1936. The vehicle was intended to be a fast, lightly-armored breakthrough tank. The modified design was deemed successful and became the basis for other cruiser tanks. A total of 65 vehicles were built. They saw combat in France and North Africa in 1940–1941.

Developed in 1936 by the Vickers-Armstrong company, with a total of 177 vehicles in two basic modifications the Tetrarch Mk I and the Tetrarch Mk ICS manufactured from 1941 through 1942. In 1942 twenty vehicles were delivered to the U.S.S.R. under Lend-Lease, of which 19 fought on the Eastern Front until October 1943.