When they make changes to military budgets it's usually technical equipment etc anyway right? Like they buy more choppers, missiles and so on, not better backpacks lol
Not always, basic infantry equipment is actually something that is often upgraded on, or atleast should be since alot of countries do it like this.
New weapon lines are being tested for that reason, new uniforms are constantly being developed for that reason and overall equipment like vests + helmets were done in that exact reason.
That's why most armies use FAST helmets now.
Don't forget that if you only spend money on equipment like vehicles, missiles and shit that you're eventually gonna fall far behind on infantry.
Infanty combat is still a thing, and it'll stay a thing.
Look at the middle-east, CQB happens every day. You can only do that with infantry, that's why infantry equipment needs to be also top notch to compete.
Like I'm glad my country's army uses the HK417 for example, it's a good rifle. Now we just need more fitting uniforms for tactical purposes, our armour plating in our vests is fine.
Could do with a different camo aswell and it'd be perfect. See what I mean?
Soldiers in the end win the war, not just helicopters and fancy toys.