Two undersea cables in Baltic Sea disrupted

So what's the solution ? Assign a surveillance UAV to every Russian ship parked "without a good reason" over a cable ? It would be expensive, but doable, and create a reserve of vehicles for wartime use.

That sounds borderline feasible – in a world where submarines don't exist.

I’m certain the sea is as mapped as you can possibly imagine, cutting say 50% of cables would lead to a lot of Russian ships sinking and a ban on them entering western waters. Their equipment is absolutely shit compared to ours and we know exactly where it all is. Surely they have been told this is a declaration of war which clearly they are scared of too.