After the end of World War I, Germany was restricted in military development by the Treaty of Versailles.

The Germans tested the tank in the Soviet Union under the Treaty of Rapallo – agreed between the USSR and Germany in 1922 under high secrecy and security.

The testing facility used from 1926 to 1933 was named Panzertruppenschule Kama, located near Kazan in the Soviet Union.

[3] Leichter Traktor ("Light tractor") was a cover name for all three medium tank designs produced there.

Although these designs were not used in actual warfare, they gave a good intuition on how to build tanks when Germany had previously only made one official tank, the A7V, and this design led to the creation of the Panzer I.