Hello.

I have noticed that upgrading my troops hardly affects the power graph. Could it be that the game only considers the number of troops, not their strength?

The calculation for the power graph from the demo screen is found here

http://forums.civfanatics.com/showthread.php?t=163098

so a warrior unit is worth 1000 soldiers and a modern armor unit is worth 40000 soldiers (for BtS)

The calculation for the power graph from the demo screen is found here

http://forums.civfanatics.com/showthread.php?t=163098

so a warrior unit is worth 1000 soldiers and a modern armor unit is worth 40000 soldiers (for BtS)
Wow! Thanks for the great link! (Can I call you Odo?;) )