[kiryandil]

Unfortunately, although I tried to track down the talk given by the British historian by clicking the link at comment #16 and then going to the following videos, that did not work. I saw several videos about the Kerch Bridge, including military implications for the war. Also longer videos about the broader view of the entire Russia/Ukraine war and world politics. Apparently, the videos that follow an initial link can be changed over time, so I never found the historians talk.

On your Internet browser [Chrome, Microsoft Edge, Firefox, Brave, Safari or the like], click on the three dots in the upper right hand corner.

From the drop-down menu, select "History".

Scroll down till you see the approximate time you were watching the video by the Brit historian.

Click on that link and you will be able to find the original link.

I would like to view that video, also. :)

[gleeaikin]

Actually I have successfully found the long video by the British historian about Russia and Ukraine, using the method you suggested.

youtube.com/watch?v=T7uwtNoWBK0

Here is detailed info given at the video site.
2,170,531 views Aug 3, 2022
This ANU Public Lecture by Emeritus Professor PAUL DIBB of the Strategic and Defence Studies Centre examines why President Putin decided to invade the Ukraine and what the implications are for international order, including the risk of a wider war in Europe and the potential use of nuclear weapons.