s.bernbaum
Mostly lurking
Yeah, it's the river. It can go on the railroad up to the river, then from the river to Thebes.
If you cut off all the roads touching the river, Thebes would be cut off, but that might not be worth the effort. It would probably be easier to just attack Thebes.![]()
Even then it would not work, if there are other cities on the river or if the river reaches the ocean and there are coastal cities, unless you also cut off all of them.
Edit: crosspost with sohleks