Ruined city? Are you truly delusional? 
There are some damaged buildings, but a ruined city? Hardly ruined.
The first picture doesn't even show any damage to the city. Neither do the next two, those only show a pair of destroyed tanks. The others show minor damage to the city.
Want to see a ruined city? Look at what the Russians did to Grozy, that's a ruined city.
You can hardly see any window not broken there. You clearly see results of artillery fire on populated city. This is, my friend, a result of a _massive_artillery_barrage_.
Did you see footage of a hospital bombed in Tskhinval? Sure, it's definitely not _completely_ destroyed, tree walls are still standing.
Imagine yourself at the place of poor civilians there you moron. Grozniy and Stalingrad were defended by desperate opponents who fortified every house.