Not to mention the Ukrainian farmers predilection to recycle and/or repurpose partially anything they find. recall those farm tractors pulling disabled tanks a year or so ago? They might even extract prices and sell them to raise money with they did with parts of downed MIG's a few months ago.
From childhood I recall a Ukrainian immigrant family (ok, because the eldest daughter was my first girlfriend) which acquired the odd discarded car or farm implement and restored them to working order. Frugal, they were. Poor, they were not. I learned from them.
All that captured armament must really be a treasure trove.
I have a friend whose now ex was an engineer getting a PhD who was from Ukraine. He had an almost addiction to fixing up cars and selling them on. They didn't need the money, but he was constantly buying cars that needed work, fixing them up, then selling them.
She was constantly trying to carve out a small space for herself in the house. If it wasn't car parts taking up space, it was stuff to do with his dissertation which had to do with some new manufacturing equipment. She'd clear off a small table, tell him it was her space, then the next day she'd come home from work and find a carburetor sitting there.
Yes, that is the exact point I was making, in jocular fashion.
I have a contact deeply involved in the Ukrainian steel industry. I need to learn whether there exists/-ed any electric-arc furnaces there. Those are what one uses to turn scrap steel into new ingots and billets.
A modern tank, I learned from that unimpeachable source, the internet, derives approximately 50% of its weight from its steel armor. Let's carve out another 20-25% for its weaponry and treads, at 5-6 tons per set, another 10%. Eighty percent of a 40-50-ton older generation Soviet tank....35-40 tons x 5,000 tanks only: in the neighborhood of 200,000 tons of steel.
Gee! With that they could make, hmmm.....about 4,000 tanks! Or lots and lots of plowshares.
The world scrap steel market is probably going to be flooded with steel from Ukraine when this war is over.
We have been recycling steel long enough that most of the steel in cars today came from navy ships or tanks in WW II. Next time you think about those full sized pickups running around as tanks, maybe they literally were one in a past life.