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Starlink kit found amid wreckage of Russian drone
(www.theregister.com)
This is a most excellent place for technology news and articles.
So they would have to have a white-list for Ukraine and a process for getting on the white-list. That doesn't seem that complicated. Somewhat intensive, sure, but a very simple solution. And I would think militarily advantageous equipment would be more controlled in a war zone than normal.