Intelligence, surveillance, target acquisition, and reconnaissance (ISTAR) drones are also a key ingredient.
Locate and destroy them while they train and mass for attack.
The only question remaining is:
If a mobnik never makes it to the front will their mother qualify for a box of chocolates?
As an attritional factor, I wonder how the cost of Russian death gratuities and mounting disability payments compares to the cost of ATACMS rounds?
My guess is that Russia is paying more, especially in proportion to their economy or Government budget.
The human cost is horrific, but that is not Putin’s concern. The cannon fodder on the other hand, will likely eventually tire of the tradeoff.
It is a brutal calculus, but war is an ugly thing.