For each big city you need what?Warenwolf wrote: ↑Sun, 6. Mar 22, 15:42 Not really. I don't see how you come to this conclusion. Cost intense (as in manpower intense?) is actual fighting for city blocks (urban warfare). But bypassing points of hard defense in order to be able to go after the focus point of offensive as fast as possible is staple of warfare at least 100 years back in time.Operation Barbarossa (invasion of SSSR by Third Reich) was (in)famous for this.
Like 50km long circle around the city, with enough manpower and equipment to not let defenders break it, when things get desparate.
Then you need to hold it for long enough for defenders to starve or surrender.
That cost a lot, logistic wise.
Historically there were many campaigns, that went broke because the aggressor sieged wrong cities for too long.
In most military strategies, it's preferable to bypass the city, if possible.
Hell, the Art of War advice it for thousands of years already.
If I would be a psychopath, I'd first clean sweep enemy forces in open field and only when remains retreat to cities, go for siege.
Russians haven't brought down Ukrainian army, nor their Airforce, yet they are going for siege already.
This really suggest Russia is under time pressure - that 15 days operational time limit seem more and more plausible (we will be at it on 10.03).
Beyond that Russia will have to canibalize resources and units from other regions - like there are already footages of trains full of Shilkas coming from Syberia region (my first question would be, WTF? There are no working Shilkas anywhere closer? What about Tunguskas? oh wait, there are already a dozen photos of captured or destroyed Tunguskas already in Ukraine, this is really huge WTF).
However, to not be so hyper-optimistic, Ukraine Armed Forces stockpile estimate was for around 15 days as well.
Plus we have like a doze on videos of huge ammo dumb explosions as well.
I think it's on a knife edge and both side are close to breaking point.
Albeit Ukraine has slight advantage with home-advantage and supplies/volunteers/intel from the West.
Next week will be bloody hell.