The pattern I seen to be seeing in NATO is that they're looking at Ukraine and getting a feel for how a real present-day war would be fought (and not just bomb-dropping in the Mideast sandbox). They're seeing the sheer volume of ammunition expenditure and going "oh shit, we need more bombs, guns, and missiles."
So now NATO, and the US in particular, is trying to figure out how to more rapidly build and maintain stocks of war materiel. The problem is, that will take years, and there might not be that much time before, say, China makes a move on Taiwan.