[anovikov]

Russia has already deployed absolutely everything it has, and lost most of it.

They tried to use air power against Ukraine and failed - suffered incredible losses and haven't achieved anything. For more than two months, they never ventured into airspace over Ukrainian controlled territory. They burned through their entire stocks of modern guided air to surface and surface to surface missiles, achieving some results like shutting down entire Ukrainian oil processing industry and most of military production, but failing to take out most airfields (Ukrainian air force is still intensely operating). Now they are using missiles that aren't suited for attacking ground targets like anti-ship Kh-22 - which misses by hundreds of meters because it has to fly all-inertial - it doesn't seem to get them anything but terrorising civilians. Because they have nothing better left, and they can't use manned aircraft.

Their tank force has suffered incredible losses and they burned through entire stocks of combat-ready equipment, all of it is either lost of already committed on the theatre - now they have to replenish with equipment from storage - the famous 15,000+ tanks and 30,000+ APC and IFVs left from the Cold War - which will be sufficient for a few years but this is yeah, old stuff.

If they are still making some progress it's only because of artillery, for which they have an advantage of having short supply lines and plenty of munitions in storage - around 6 million tons - but at this rate of usage both munitions and equipment from storage will inevitably run out in a few years.