Comment by gmueckl

Bidirectional powerlines make the grid more stable for tha larger region around most countries because it makes it easier to route around the conflict as far as capacities permit. Not many countries span coast to coast in a way that couldn't be routed around. So that would actually increase the vulnerability of individual countries.

The EU is actually extremely special because its souvereign member states collaborate in almost all areas on a level that is unmatched anywhere else. But the ideological foundation is getting eroded by propaganda and if that assault is effective, Europe will balcanize again and end up experiencing many more armed conflicts.