Ukraine became quite good at blowing up Russian tanks,
but apparently the idea of CAPTURING them never really
comes to mind ....
The Leopard-II is, judging by 'expert' commentary, a
"better" tank than the Abrams - reliable and far easier
to maintain. US mil products always suffer "feature creep"
that makes them too complicated. We can't make a fighter
plane - just "multi-mission aerial platforms".
I'm not completely sure how tanks will significantly
improve the Ukrainian position - esp the relatively
small collective NATO contributions. Russia can blow
up tanks as well. Indeed tanks (and aircraft carriers)
now seem to be drifting under Patton's def of "fixed
fortifications".
Killer DRONES may be the far better/cheaper solution
for Ukraine. Think of them as 'aerial tanks' except
a lot quicker, harder to hit and deliverable in large
quantities.