The US doesn't use that much artillery as a matter of tactics. A significant portion of their capacity exists to support other countries.
Artillery is suited for combat with clear lines of confrontation. US doctrine actively tilts the battlefield so that these lines don't form, which plays to their strengths.
And US rely a lot on naval power.
USA has a very advantageous geo position of oceans on two sides. So it's really hard for an enemy to show up with a ground army and continuous supply lines (like Russia). And US makes the military strategy to prevent that by all costs.
The us doesn't use artillery because it doesn't conduct large scale combat operations. Artillery is still very much the King of Battle in lsco
Ukraine is an excellent reminder that trench warfare sucks and is a manpower and resource drain for both sides. One guy in a fighter jet is probably 1000000x more effective than a guy in a trench. One guided munition has the capability to decapitate an entire government.
We are also protected on both sides by an ocean. If Canada and Mexico were hostile powers then we would be investing more in artillery shells and less in fighter jets.
Germany and North Korea are accessible by land to hostile powers, so their situation is very different.
Unless it's the government of Iran, apparently.
Are you referring to the new government Iran that took over after their leadership has been removed?
They're likely referring to the government that controls Hormuz straight.
> One guy in a fighter jet is probably 1000000x more effective than a guy in a trench
A guy in a trench with a $25,000 electro-optical/thermal MANPAD can now snipe a $100+ million dollar 5th gen stealth fighter flying low and fast.
To decapitate a government you'd just need a roughly $500 drone you can make at home and some homemade explosives. Bonus points if you harden it from electronic attack and use INS and optical terrain recognition for navigation and image analysis for final targeting.
Basically a 13 year old with an afternoon and some time in the library.
It's a weird time.