Thumpalumpacus
Major
It's a good and apt reference. But how does Ukraine retake the north coast of the Sea of Azov, Mariupol and the Donbas if the Russians are dug in and now well supplied?
I'm not sure. If they are dug in, those shiny new howitzers could come in handy. It also depends on how many men Ukraine has available for field operations.
I wouldn't assume that they're well-supplied, though. I've read several intel estimates which report that Russian forces are having logistical issues even on the Russian side of the border.