What other Ukrainian "authorities" are going to enter an active war zone if not the armed forces?
Even more importantly what does it matter in the slightest at all who supplied photographic and video evidence of Russian war crimes? Do the Russian war crimes magically "unhappen" depending who supplies the photographic and video evidence?
What a pointless, ineffectual and irrelevant attempt at a deflection attempt.
Stay focused on the relevant facts and that is evidence of Russian war crimes emerged on April 1st 2022, a full 8 days before Johnson's visit.
