NATO conducted its largest military exercise since the Cold War in the frigid waters and icy mountains of Norway Oct. 25-Nov. 7.
During the final days of the Trident Juncture exercise, GPS signals guiding ships, aircraft, tanks, trucks and troops began to fail. Tracking screens flickered and positions were suddenly wrong from a few meters to hundreds of kilometers.
Civilian airliners, cars, trucks, cargo ships and smartphones operating in and around Norway and Finland experienced similar disruptions. Norway-based airline Wideroe told The Barents Observer that its pilots were reporting the loss of GPS signals when flying to airports in northern Norway and Finland. Airfields affected ranged from Kirkenes, on Norway’s border with Russia, to Lyngen in Troms, much further west.