Russia and Ukraine

[Anomalocaris]

Just so everyone else is in the picture:

Using these templates, the Soviets developed the concept of deep battle, and by 1936, it had become part of the Red Army Field Regulations. Deep operations had two phases: the tactical deep battle, followed by the exploitation of tactical success, known as the conduct of deep battle operations. Deep battle envisaged the breaking of the enemy's forward defenses, or tactical zones, through combined arms assaults, which would be followed up by fresh uncommitted mobile operational reserves sent to exploit the strategic depth of an enemy front. The goal of a deep operation was to inflict a decisive strategic defeat on the enemy's logistical abilities and render the defence of their front more difficult, impossible, or indeed irrelevant. Unlike most other doctrines, deep battle stressed combined arms cooperation at all levels: strategic, operational, and tactical.

So, the Russians have what fresh forces to hand? What logistical mobility do they possess at this point? What combined-arms operations have they successfully concluded? What exploitations are they pursuing? There's no breakthrough here at all to exploit. They're regrouping.

This is why I find this point of Chuck's unconvincing. It lacks a basis in facts.

I don’t think we are talking past each other by accident.   You are intentionally misrepresenting me so as to pretend to have something to say.