The Soviet IS-2 Heavy Tank (Patreon)

The crew of a Soviet IS-2 Heavy Tank photographed with German Prisoners of War.
The IS-2, named after Iosef Stalin, was a descendant of the KV-1. This had fallen out of favour as it was much less mobile and reliable than the T-34 Medium, but no more heavily armed. The IS-2 rectified this with its powerful 122mm gun.