>>510765028theres so much i wanna say to your post, but im phone fagging right now so ill just say
1. russia is not attackkng porkroast, their sieging it
2. russia has artillery, air, drone armor and infantry superiority in porkroast - no reason to expect a favorable casualty ratio at all
3. porkroast is not a fortress city, it was a logistics hub that got moved to the front once the actual fortress cities fell. its neithet naturally defensible or on much of a high ground
4. ukraine is not using defense in depth. quite the opposite, they are holding every city they can with massive causalties because ukraine must maintain the illusion their army isnt getting ground to bone jelly
5. russias army is growing in size every month as well as drone power and armor power, whatever casualties ukraine is inflicting on russia are sustainable. ukraines are unknown but its a terrible sign that they have almost no volunteers anymore
sorry i couldnt give a more detailed answer