Generally I don't recommend watching these. These kinds of videos are incredibly disturbing.
--- Trigger warning: violence.
One thing that struck me is how horror-like all of it seemed and how invisible the opponent in such an engagement is. The invaders would often not see where the defenders were and would get shot seemingly out of nowhere. Vice versa they would shoot into small nudges and windows here or there and its often unclear whether they hit anyone or not.
My cousins who fought in Bosnia would often tell me similar stories. Their enemies were invisible most of the time, while sometimes someone would get hit on their side.
For reference: I once watched Full Metal Jacket with one of my cousins and there was a scene where suddenly, out of nowhere, the protagonists would get attacked in an urban area but they couldn't even see their enemies, just flashes of rifle fire here and there. He said: "This is exactly like war."
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I don't know what to make of it. It all just feels like pointless horror.