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I see they supplied you with new material so that you wouldn't have to talk about faulty wiring and danger of smoking.
However projecting Putin's imperial delusions on other countries doesn't really work well outside of Russian propaganda space. Russian Federation is the aggressor. Not Poland. Stay on topic, comrade.
It seems that it is you who are digressing from the topic, I have not seen reports that Ukraine claimed responsibility for the strikes in Bryansk, probably because there were no such messages.
Ukraine does not deny nor confirm. Do you understand? "Does not deny nor confirm"