[NorthMountain]

Standard US 155mm "dumb" shells are being retrofitted with GPS guidance kits, said to resist jamming & spoofing. Those kits cost ~$13,000 each.

That's the same approach to precision as the JDAM. It works quite well in that application.

[BroJoeK]

"That's the same approach to precision as the JDAM.
It works quite well in that application."

Right, but the issue is EW GPS jamming & spoofing:

• A normal "dumb" artillery shell will land within a certain radius from its target.

• A normal artillery shell equipped with GPS guidance will land much closer to its target.

• But an artillery shell equipped with GPS guidance that's been jammed/spoofed can be redirected to hit its own troops.

That's the issue our best equipment is intended to prevent.