[mrvenkman]

I read this and was worried until I pondered if critical communication was still reliant on undersea cables. A threat to the economic system is obviously an important factor.

I am no expert but I would hope that satellites are now used for defence based communication.

[maccam94]

The bandwidth available via undersea fiber optic cables is orders of magnitude higher than via satellite. I'm sure governments have backup satellite links but their use would be restricted to top priority traffic if something catastrophic happened to the undersea cables.

[rangibaby]

> I am no expert but I would hope that satellites are now used for defence based communication.

If a war gets to the point where nation states are cutting each other’s undersea cables, I think satellites are coming down too

[cafard]

From at least the 1890s it was common for belligerents to cut one another's telegraph cables. Of course, there weren't any satellites back then.