Russia’s traditional war fighting MO has been “keep dying and surrendering in huge numbers until something major happens”.
Crimean War, Russo Japanese War, WW1, Polish-Soviet war, Winter War, WW2, Afghanistan, Chechnya 1.
If not for Lend/Lease giving Russia food, oil, guns, vehicles, bullets, boots and clothing, they would have been rolled back to middle Siberia. For all their hypermacho chest thumping, they’re shit at war.