20+ dead isn’t really surprising in a massed brawl between hundreds of fit young men trained to kill, its just that in the past both sides were holding back to not cross the line of lethality.
Obviously something very different went down this time, which could either be caused by a policy shift to change the RoE, or something so drastic happened on the ground as to trigger lethal response as per standard RoE.
There is surprising little information publically available on such a significant shift, that in itself is telling. It would suggest to me that this wasn’t caused by some deliberate top-down policy shift on the part of either government, as if that was the case, we would be getting a flood of information and official announcements since the side that initiated the shift would have been expecting fatalities and had all their ducks in a row in advanced. Just look at the recent Indian-Pakistan air clash. The Indians went on a media blitz almost before their planes returned from their mission into Pakistan. And similarly, we had a near live stream when the PAF retaliated against India.
The deafening silence from both governments suggest neither planned or really expected this, so are busy trying to establish the facts, and probably talking to the other side, before they make any official public announcements on the matter.
Based on the severity of the Indian losses, I expect deaths on the PLA side as well. Indeed, that feels like the most likely cause to me with the facts available.
The Indians have already ambushed a PLA officer trying to talk to them, so they have form in starting fights. In addition, in the bragging video posted by Indians of the aftermath of the last ambush, the Indian troops looked very ill disciplined and almost wild with rage, barely even listening to their officer.
In addition, it is unusual and significant that the CO of the regiment would be present on the front lines of a clash, never mind killed in action.
His biography lists him as initially serving in Kashmir, so this looks like the recently transferred hot head who was the primary cause of the earlier clashes and increase in tensions along the boarder.
Feels most likely that India and China struck a deal that the colonel didn’t like, so he took his men out looking for trouble to derail the deal and found more than he was bargaining for.
If the Indian troops were already pumped up on nationalist BS to the point of becoming a near uncontrollably undisciplined mob to start with, and you have a CO looking for trouble and cutting them loose or even encouraging them to even more violence, it’s entirely plausible, likely even, that the Indians attacked a small PLA forward unit who weren’t expecting that level of violence and killed some of them.
When PLA reinforcements arrived and saw what the Indians did, the gloves would have truly come off, and we are now seeing the consequences.