Did Ukrainian troops attack a Russian armored vehicle convoy with dozens of "U.K.-sent tanks"? No, that's not true: The video posted, which is filled with footage of tanks, has absolutely no footage of Ukrainian troops attacking a Russian convoy. The U.K. did not send tanks to Ukraine but to Poland so that Poland could send older Soviet-era T-72 tanks to Ukraine.
The claim appears in a video on Facebook on May 3, 2022, with the headline "Tensions Today - Ukrainian troops Attack Russia armored vehicle Convoy with Dozens of UK-sent Tanks." It opened:
THE NARRATIVE OF THIS VIDEO TAKEN FROM OFFICIAL SOURCES
This is what the post looked like on Facebook at the time of writing:
(Source: Facebook screenshot taken on Wed May 4 18:36:38 2022 UTC)
The "official source" is an article titled, "UK offers to send tanks to Poland to enable Polish heavy military equipment to be sent to Ukraine," published by British news outlet INEWS on April 22, 2022. Neither the article nor the video's narrator ever mention Ukrainian troops attacking a Russian armored vehicle convoy.
A caption at :21 reads, "Britain plans to send tanks to Poland," showing military vehicles with a Union Jack flag. The narrator then says:
Britain plans to send tanks to Poland in deal to help Ukraine. Britain is planning to send tanks to Poland in a significant escalation of its military support so that Ukraine can then be supplied by the Polish government with Soviet-era T-72 tanks.
The Wall Street Journal also reported this. The rest of the voiceover is taken directly from the INEWS article and runs until 4:29. There is no more narration after that, only video images.
Poland confirmed it received tanks from the U.K., Reuters reported on April 25, 2022.
Other fact checks related to the 2022 Russia-Ukraine conflict can be found here.