alternatehistory.com

Long story short, the Soviet army in 1960s recognized that the T-64 were too mechanically complex and unfriendly for its crews even for their standards, so they decided to further develop the "Iosif Stalin" heavy tanks with a focus on increased mobility to meet the main battle tank doctrine.

Illustrations below are mostly based on works by youROKer.
IS-10 mbts.png
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