I do competitive bullseye rifle, and I've done some basic marksmanship coaching. That's about what I'd expect for maybe 6-12 hours of total training on a rifle for someone with zero prior experience with guns.
The basics of rifles is very, very simple. In competition world we just get overly focused on stuff that doesn't matter - our benchmark is like 10/10 shots at 400 yards in an 8" circle. For someone getting basic instructions, 5/10 shots at 400 yards in a 16" circle is probably fine, and that is an order of magnitude easier to teach.
It took me like 3 hours from zero experience to get to that, and another 300+ hours to get to competitively decent at prone (I might be good now but I'm not particularly skilled so it took me a lot of practice). And we're not going to talk about standing because in the competition world what we do is so far removed from reality that it's not worth talking about in this context lol. Someone with run&gun experience can talk about that, I don't know anything about that.
The fighting helped blunt the PVA Spring Offensive and the actions of the 2 PPCLI and 3 RAR at Kapyong were critical in preventing a breakthrough against the UN central front, the encirclement of US forces in Korea, which were at that point in general retreat, and ultimately, the capture of Seoul.
[0] https://en.wikipedia.org/wiki/Battle_of_Kapyong#Canadian_2_P...
This may be true but we want any adversary to think that we will! We at least ought to be all able and willing to do so. I hope our generals and military command know better but I want them to have multiple options and I want any adversary to have to think twice before breaching our shores.