There's no question that GPS satellites will be a high-value target in the next super-regional conflict. The system was a primary reason why Saddam was defeated (temporarily!) in Desert Storm. The Iraqis were used to getting lost in the trackless desert from their war with Iran, and assumed that the coalition forces would be just as lost. GPS allowed the famous "left hook" that cut the Republican Guard off.

https://www.scientificamerican.com/article/gps-and-the-world...

and perhaps that is a legitimate concern for more than just Europeans, and that includes Americans, and perhaps it's not just about war, but about competition, trade, and fair global access to a technology not being beholden to a single administration (especially in the new age of "America first").