There is a well known arms race in ECM and ECCM [0]. The military (US at least) is not relying on GPS alone for this type of thing, and uses various types of ja

There is a well known arms race in ECM and ECCM [0]. The military (US at least) is not relying on GPS alone for this type of thing, and uses various types of jamming detection, jamming protection, and counter measures [0] https://en.wikipedia.org/wiki/Electronic_counter-countermeasure https://en.wikipedia.org/wiki/Electronic_counter-countermeas...