After the annexation of Crimea in March 2014, Roscosmos chief Dmitry Rogozin publicly threatens to switch off the GLONASS reference stations sited on US soil under a long-running cooperative agreement, and to suspend collaborative work on cross-system positioning improvements.
The episode weaponises what had been a textbook example of post-Cold-War civilian-standards cooperation and reminds Western navigation customers that there is no signal that someone, somewhere, cannot pull. By 2024 GLONASS itself is operating in degraded form due to sanctions on Russian electronics imports — proof that the same logic cuts both ways.