not a lot. Probably only a couple brigades worth due to chokepoints.
Exactly this. It just boggles my mind that how otherwise smart individuals can make such stupid comments.
The only reason why the IA got overran was because they ran out of supplies and has to retreat a lot.
That was one of the primary causes behind the 1962 disaster, but not the only one. The units were deployed piecemeal, in small so-called strongholds that were completely isolated from each other and without any reliable means of resupplying. This was done in accordance with the then-GoI policy of 'defending every inch', which saw our forces deployed in a thin red line with lots of gaps in between. And to make matters worse, in many sections of the front, the units were deployed in the valleys. So the Chinese had no trouble achieving overwhelming local superiority and dealing with our army one unit at a time.
Situation is different now. We need to win the air battle. As long as we win the air battle we can man these choke points and hold the Chinese up and hit their rear LOCs and bases.
Not even win, but just keep harassing them to the point their air interdictions become ineffective. The biggest problem, in my opinion, is going to be their artillery and drones. The surest way to counter those is dig down, litter the mountains with underground tunnels, basically go the Viet Cong way.