Get Ukraine NATO spec weapons.

That requires months of training. Giving Ukraine Russian designed systems allows them to be fielded immediately.

Considering the war may last for years that training should be (and to some extent is) underway

Training Ukrainian units is a burden on the Ukrainians. Producing Soviet era weaponry would be a burden on NATO, who is not at war and therefore can more easily take on such a burden. Is probably the thinking

>Training Ukrainian units is a burden on the Ukrainians.

Good thing Ukrainian units are being trained overseas by the tens of thousands with even the Czech Republic today approving opening of training within their country.

The Czech training in particular is interesting because it's for mechanized units.

Not to mention the logistics nightmare of switching from Russian ammunition to NATO ammunition.

Better to start now then. The UK just finished a 6 week training course for unarmed NATO helicopters, so it's clearly possible to supply advanced vehicles (more complicated than artillery) if the political will is there.

Upgrading Ukraine with NATO weapons work better on the long term and I have the distinct feeling Ukraine would prefer that too.

Let me explain you something: russians import tanks; vehicles; canons, then Ukrainien farmers rob them with their tractors. But it is not enough. Sure there are dumb Russians defectors who leave behind them some ammunitions here and there, but not enough. So we have to produce what’s missing for our fellow Ukrainien friends.