From "The analyst":

LARGE SCALE STRIKES SMASH RUSSIAN FORCES

The big news, clearly is the story of the massive and coordinated Ukraine missile raid on Russian bases and positions once permission to strike had been given on Russia itself.
This followed a Russian decision to do what they always do to try and push large amounts of infantry into the Kharkiv front, in an effort to restore their flagging fortunes.
As the war has progressed systems like the various GPS dependent missiles used by MLRS/HIMARS systems have become less effective at distance, as the Russians work out how to jam or spoof the signals, greatly reducing their accuracy. Then the Americans work out a fix, which eventually the Russians learn to block again and it becomes a perpetual game of cat and mouse. However to stop HIMARS/MLRS missiles you need the jamming equipment, radars and possibly the air defences - although they’re of limited use against a group of incoming.
To start the offensive against the Russian bases and troop concentrations the Ukrainians had to find and destroy the primary Russian air search radar in the region, a Castor 2E2, which was located by a Ukrainian developed loitering drone, the Ram-2, and destroyed by a pair of them, one taking out the radar emitter and the other the support vehicle.
Without the radars the Russians were unawares of the incoming multiple HIMARS launches that devastated their S-300/400 sites, leaving nothing but flaming melted scrap in their wake.
Without the threat of the air defence missile batteries the Ukrainians could risk sending in strike aircraft and helicopters to assist their ground forces.
The Ukrainian use of precision glide bombs, some of the Paveway family, was critical to preventing the Russians exploiting their hold in Vovchansk by destroying their positions in high rise buildings they had captured. This halted the Russian advance and allowed the Ukrainians to begin their counter attacks in the town, largely driving the Russians out of much of what they’d previously gained. These had to be precision strikes - a mistake could have been fatal to their own side in such close proximity.
Even the Russians commented on the scale of the missile raids raining down on their bases and military infrastructure- claiming that at least 12 MLRS systems were in use against them - oddly in a way that sounded like ‘that’s just not fair’. Ukraine then published a photo of dozens of the six missile canister systems piled up with no missiles in them, suggesting that as many as 308 missiles had been used so far.
The Russians of course made all of this worse for themselves. The system of central direction with its limited capacity - or willingness - go communicate vital information, an endemic problem in an authoritarian society where information is tightly controlled to frame the required ‘message’, resulted in a massacre at the front.
Any sensible higher military authority would have predicted that if the west gave permission to fire on Russian soil, it would be obvious what the targets would be. You’d order their rapid redeployment and relocation in the time you had available, or at least put some defensive measures in place.
But this is Russia. Admitting reality is way too hard to do, especially if it’s bad news, so they did absolutely nothing. Partly out of disbelief that the west would never do such a thing because it was too scared. The arrogance of assumption cost them dearly.
If I could have a motto tattooed on every officers hand it would always be ‘assume nothing’. The biggest military sin - and it should apply in life generally! Never ever assume everything will go as planned. Always have a Plan-B, always take precautions to have a way out, a way round or an alternative if things don’t go as you expect. It’s true that nobody can plan for every eventuality, but it’s never that difficult to identify a sensible alternative that’s easy to implement and make viable. But that takes initiative and in Russia, initiative is rarely rewarded or even considered a positive trait.

Slava Ukraini 🇺🇦!