James J. Torrence
The first warning does not come from an intelligence summary. It comes from a missed approach over Vilnius. On the operations floor of the new Multi-Corps Land Component Command Northwest in Mikkeli, Finland, Captain Henrik Nyman watches a civil aviation display he is not supposed to care about. It lives in the corner of his screen as context, a way to judge how commercial traffic is flowing around military transit routes.
A Boeing on final approach to Vilnius drops through one thousand feet, hesitates, then claws its way back into the sky and bends west. A few seconds later the Lithuanian aviation authority pushes an advisory into the Eurocontrol feed. Suspected GNSS (global navigation satellite system) interference on final approach. Aircraft diverting to Warsaw. Nyman tags the incident in the ever-growing PNT log—the staff has a whole column for disruptions to positioning, navigation, and timing systems now. His cursor slides to another window, a heat map that overlays the Baltic Sea and the Gulf of Finland.
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