Air Assault Brigade

Posts below the video on social media claim it is the first destroyed British Challenger 2 tank delivered to Ukraine.
"Challenger 2 on fire" can be seen at the very bottom of the video. It's very hard to tell from just a few seconds of footage if this is actually the Challenger 2.

After years of delays and cost overruns, the British Royal Navy’s HMS Queen Elizabeth is set to begin a series of critical sea trails that will help determine if the billions of pounds it took to build her were really worth it.