During the Cold War, the Soviet Union also developed a global navigation satellite system called GLONASS to compete with GPS. Subsequently, due to Russia's inability to bear the enormous costs of operating the satellites, this system was retired.
冷戰時期，蘇聯也發展一套全球導航衛星系統 GLONASS，與 GPS 互別苗頭，後來由於俄國無法負擔龐大的衛星營運費，這套系統已經廢棄不用。