How do I unlock Indian tribes which are willing to join me but need a more powerful force to move into their space? I just started a Colonial FIW campaign as the French and sent a large force around to unlock some native allies. My force moved through two such spaces and was headed for a third during turn one, but the first two are still locked! Do I have to end a turn in each space? That seems kind of time consuming if so.
Also, is there a summary available somewhere which explains the specifics of each tribe? By that I mean, which are willing to join each side, what the conditions are for joining, and what conditions would make some tribes switch sides. I find the native politics very confusing.
Thanks!