@Kyebr @collectifission @randahl days before russia began its full scale invasion of Ukraine, public and open sources were among the conjecture that russian forces would use ground based Loran systems to determine their position and would not rely on any space based ones like Glonass.

One imagines that like much of the russian invasion plans, that may not have panned out as expected.

https://www.gpsworld.com/russia-expected-to-ditch-glonass-for-loran-in-ukraine-invasion/