Ukraine’s own tank corps, 900 T-64s and T-72s strong back in February, also has suffered heavy losses: around 375 total write-offs, of which 130 or so tanks were captured by the Russians.The difference between Russian and Ukrainian tank attrition is that Ukraine has captured from Russia more modern tanks than it has lost to Russia, while Russia has had to dip into its warehouses and open-air tank parks in order to make good its own losses.Crews bailing out undamaged tanks says more about the failure of Russian battlefield leadership than it says about the tanks themselves.The Ukrainian army previously operated ex-Soviet T-62s back in the 1990s, but it’s unclear whether the service still has big stocks of 115-millimeter ammunition—or convenient sources for replenishing those stocks.The potential ammo shortage, more than the sophistication—or lack thereof—of the T-62s could be the main reason the Ukrainian army deploys its ex-Russian T-62s, but doesn’t deploy them anywhere they might see intensive fighting."