All these battle tanks are being sent... Are battle tanks not vulnerable to helicopter gunships and does Russia not have that advantage in such gunships?
They need to send tanks because the Ukrainan tank inventory depleted beyond recovery.
Visibly the Ukrianan army lost mobility, not capable to move reserves to the hot positions on the front.
Russia testing the frontline now, and the results promising for Russia, Ukraine not capable any more to reinforce positions. Due to the lost vehicles, and mostly due to the tanks, they have the protection and firepower to move quickly to pressuresed front segments and start counterattack.
Before war Ukraine had 2500 MBTs, now the number is most likelly in the low hundreds , and still falling.
It is a very desperate move from the USAto fill the hole.
And all of this talk about quality and so on is rubbish.
The front in Ukraine needs number, not G.I. Joe cartoon quality.
Infantry can establish defended positions for tanks, it drop into it, shoot 20-30 times, and go to the next position .