: A U.S. official estimates Russians have lost 5,000-6,000 killed in the first 2 weeks of battle. Standard battlefield math assumes 3x as many wounded as killed, so that puts the number of wounded at 15,000-18,000.
Here is the problem. When you have a massive military advantage but you take a lot of casualties you start using weapons that the enemy doesn't have and in more indiscriminate way.
During WW2 when Jews fought back in Warsaw Ghetto the Germans simply flattened it with artillery.