[WildHighlander57]

Where did they get the spare parts?

Hmmmm.

[Paul R.]

Ukraine has a pretty high tech arms and space industry. They ought to be able to make ‘em themselves.

[FreeReign]

Where did they get the spare parts? Hmmmm.

The problem exists in both directions.

If there is one area where Ukraine could in principle do Russia some harm, it's weapons manufacturing. Ukrainian state-owned weapons conglomerate Ukroboronprom has announced it would stop deliveries to Russia, pending the continuation of diplomatic hostilities. "That might be very serious, because without parts and elements produced for Russian weapons systems ... Russia might have nothing to export," said Sutyagin of the Royal United Services Institute. He said a little over half of Russia's strategic warheads are carried by missile systems that are either Ukrainian-designed and produced or rely on key Ukrainian components.

Link