I'm afraid that rail, roads, other infrastructure, will make this game a bit more complicated and cause people to lose site of the big picture, GLOBAL CONQUEST.
I though about it after lets say, you kill an enemy on a peninsula and you want to send most of the troops to your other side of the country. It would take forever to get them there, and when they finally do get to their destination, the reason for them going their might have been changed or eliminated.
What if you get surprised by someone, and you need fast reinforcements. It might be a quick back up.
Railroads, transport planes, highways, and other transportation systems were and still are extremely important in all wars. Without a good transportation system, most wars would be doomed to become more like WWI.
One point to prove this is to point out how the front line military needs support from supplies, transportation, manufacture of the supplies, ... etc. An efficient military has a 1 : 7 ratio. For every one military man there are seven people supporting them. Frankly, the America military is inefficient at about 1 : 15.
Anyway, thanks for your point of view and I understand that you want to keep this a military game and less like civilization.
Also, to Boogra.
Thanks for the positive feed back, and I actually got the idea right after playing Civilization three. EVERYONE SHOULD BUY CIVILIZATION 2 and 3!!! 4 in my option is a disappointment, but that is my option.