Could just as well be the US. When selective availability was disabled they said they will come up with something new to deny hostile forces accurate GPS. [0]

Could just as well be the US. When selective availability was disabled they said they will come up with something new to deny hostile forces accurate GPS. [0] > Develop measures to prevent the hostile use of GPS and its augmentations to ensure that the United States retains a military advantage without unduly disrupting or degrading civilian uses. GPS only being jammed at higher altitudes, but not on the ground fits the above pretty well imo. We don't know how this jamming would affect US military GPS usage, but it's not impossible to think that it doesn't. [0] https://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/gps/policy/presidential/?print=go#1 https://www.faa.gov/about/office_org/headquarters_offices/at...