without GPS then they're just useless

Something similar seems to have happened in Ukraine with various GPS-guided artillery shells and bombs. Turns out, it's not such a good idea to make your military heavily reliant on fancy precision-guided munitions, and just assume that no one's ever going to figure out a counter-measure to the guidance systems. After all, you're the best-funded military in the world, how could anyone else innovate anything?

I guess we're heading for the CoD Black Ops 2 timeline of the entire US arsenal being disabled by electronic warfare. Game was set it 2025 too