> pretty obvious what's happening here

Good start. Then turn off Russia’s cable that runs via Finland [1] and make vague threats about (a) seizing shadow-fleet vessels in the Baltics and (b) how vulnerable Russia’s cable to Kaliningrad [2] would be to careless anchors.

All the while: start setting up non-cable based back-up bandwidth for if Russia severs these cables in advance of invasion.

[1] https://www.submarinecablemap.com/submarine-cable/bcs-north-...

[2] https://www.submarinecablemap.com/submarine-cable/kingisepp-...