Russia has used it's full force against Ukraine, it is just completely incompetent and showed how its military is definitely not superpower status. The Russian air force only had success in places like Syria because they were fighting rebels, stuck in a civil war without an organized government. Russia has shown they are no match for even a semi competent military and that truly is pathetic. The military in Russia was run by corruption, just like every other part of the country, and they never thought that one day they might actually have to utilize the equipment where they skimmed that money. It is crazy how badly trained they are and there is a distinct lack of communication even between troops 20 meters apart.
Did you miss the part where they landed paratroops next to Kiev and had to retreat because they cannot control the air space? You seem oblivious to so much.
It's basically USSR vs Finland 2.0 (c.f. WWII)
No fighting morale (at that time, it was because most of the officers were purged by Stalin, I'm not sure if something similar happened in recent years inside Russia).
That basically means even if you fight numerically smaller amount of troops, your own troops can't efficiently co-ordinate their tactics and as a result get quashed individually by the highly alert and spirited Ukrainians.
Also:
Russia was basically trying to blitzkreig into Kiev from my understanding, just like USSR modeled its finland invasion as one as well, but both of these blitzkreigs failed, and turned into savage wars lasting for several months (including winter seasons in the case of Finland).
I heard winters inside Russia/USSR were really bad, so I have no idea how the Russians will be able to cope with the extreme cold of winter when that rolls around. Maybe they will endure one or two seasons of winter, and then retreat everywhere because the losses were so heavy.
