I hardly ever play great powers, but recently playing USA or Russia I just do not understand it.
How do you increase your influence? (I mean the points which supposebly increase over time)
For instance, I am allied and 200 relations with columbia. But my influence is just sitting at 2.06 and not really moving at all. How do I get it to move?
I tried investing all their land to railroads but it has hardly done anything.