I don't think so myself . I've had it happen with several different factions {I forget what the first 2 campaigns or factions were} and the latest is a United Provinces campaign where it happened last turn with the Plains Nations {took a good 10 minutes} and then just this turn with the Danish {again , 10 minutes} however the Plains Nations only took a second {I think they chose to research casinos this time} .
Same game , 2 consecutive turns yet 2 different faction with very different environments in different theaters .
I certainly didn't see any large concentrations of troops .
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