The T-54 is a Soviet 1st generation main battle tank put into service in 1947. It served throughout the Cold War and is one of the most produced MBTs at a total of roughly 70,000 units. Its most modern variants are still in active duty in many armies around the world.
The T-55 is an updated version of the T-54 that mainly features nuclear, biological, and chemical (NBC) protection capabilities.
Describe the history of the creation and combat usage of the vehicle family in more detail than in the introduction. Be sure to reference text and sources by using
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<references />. This section may also include the family's dev blog entries (if applicable).