“...they MUST have some other relatively modern weapons systems. “
Actually, no. In 1994, Clinton signed a trilateral treaty with Ukraine and Russia that stripped Ukraine of all modern weapons in return for the promise that the U.S. would protect their borders and the Russians would “respect” their territory.
Obviously, the only entity that observed the treaty was Ukraine, because both the U.S. and Russia lied.
Idiots to trust Clinton like that.