“As analysis of the most recent armed conflicts shows, the opponent is actively using its ability to introduce deliberate adjustments in the navigational characteristics of its systems for misinformation. And we cannot reckon with that information which is received from GPS receivers”, he said, as TASS reports.

http://southfront.org/russian-aerospace-forces-usa-intentionally-distorting-gps-data-in-the-conflict-zone/?COLLCC=3780071554