What part of the AI controls whether they'll leave an alliance they're in?
The ungrateful bastards in liberated countries, if un-puppeted, tend to leave alliances at the earliest opportunity... let alone the even more ungrateful bastards in either kind of Spain after you help them win the civil war.
Ideally, I'd like to have countries essentially remain in their alliance almost all of the time, and only leave under exceptional circumstances.
The ungrateful bastards in liberated countries, if un-puppeted, tend to leave alliances at the earliest opportunity... let alone the even more ungrateful bastards in either kind of Spain after you help them win the civil war.
Ideally, I'd like to have countries essentially remain in their alliance almost all of the time, and only leave under exceptional circumstances.