>>23502
>5. Preparation for the sovietization of occupied territories.
>After that they weren't dismissed and disarmed, but new units were formed. Brigades, divisions and even a corps.

Because territories weren't fully "pacified" in 1941. For example, Western Ukraine and Baltic states had local insurgents even in late 40s, even after war and waves of occupation. And of course USSR would want to sovetize everything, as empire-like state.

Purges and action against anti-soviet elements in own society also gave fuel to rising political pressure. There was constant struggle with "internal enemy".

They weren't disbanded later too. Officially NKVD forces were so kind of police, but in reality there were police part and army part (so called "internal forces") that lived well until the end of USSR and then later. They had APCs, tanks and air forces (mostly helicopters), used conscription to fill ranks (compared to police part that had separate colleges and universities).

https://en.wikipedia.org/wiki/Internal_Troops_of_Russia

For example, they did serious work in Chechen war. For many reasons army can't act inside of country every time, but these guys could.