“All right, but apart from the sanitation, medicine, education, wine, public order, irrigation, roads, the fresh water system and public health, what have the Romans ever done for us?”

https://lemmy.world/post/43404537

Similarly, the US has a crazy highway system that was originally intended to move tanks around in case of an invasion. We live in a car-centric country because of war machines.
Most European countries built railroads to facilitate troop movements. It’s also the reason they originally all had different track widths, so other countries couldn’t easily move troops in.
That’s the sad thing about Civ 5. Once you build roads and the invaders have mobile infantry, you’re 3 moves away from your capital being raised
You’re looking at it wrong. Once they build roads, their capital is 3 moves away from being raised.
If you’re not using orbital lasers on enemies still using knights you’re doing Civ wrong (and/or playing on hard)
(Or playing FreeCiv online.)