What are you Ukrainians doing with all the arms we already financed for you? Selling them to other countries maybe?
Baby needs a new pair of shoes.
Ahem. Fighting. Uses up weapons you know. Well known physical fact. When one shoots off a shell it is gone, downrange somewhere, hopefully in some Russians lap. There is then an empty space in the ammo box.
jI imagine that the UKR is pretty much shooting at anything and everything, the cost of the weapon bedamned. Kill and destroy the invaders with whatever exotic weapon you have and let the US/NATO/EU pick up the cost.