However , the US government can selectively deny access to the system , as happened to the Indian military in 1999 during the Kargil War .
The United States government created the system , maintains it , makes it freely accessible to anyone with a GPS receiver .
The US government can selectively deny access to the system , as happened to the Indian military in 1999 during the Kargil War .
The United States government created the system , maintains it , makes it freely accessible to anyone with a GPS receiver .