Since 2019, GPS signals across Europe, Greenland and Canada have experienced a huge spike in sudden, widespread signal blackouts. These have resulted in disruptions and degraded performance in navigation systems that airplanes and ships rely on to travel safely.
Veritasium did a video recently that shows how they narrowed this down to the Russians. Not that anyone was at all surprised it was them. 🙄
https://youtu.be/tz23G_UXCGA