“Most GPS will work against the Russians. Russia has limited spoofing capabilities, and GPS jammers are a huge neon sign saying ‘send a missile here’. Russia won’t have enough of this equipment to be that useful across their entire military front.”
Except that has been PROVEN WRONG. But nice try.
https://www.washingtonpost.com/world/2024/05/24/russia-jamming-us-weapons-ukraine/