Get civs to hate each other?

[AtomicCoffee]

Is there a good way to get Civs in a scenario predisposed to hate each other? For example in a hypothetical Thirty Years' War scenario protestant German states would be in a locked alliance with the Catholic German states, but then France and Sweden enter the war somewhere halfway through. So, is there a way to get France and Sweden to hate Catholic Grrmany without locking them in an alliance?

 

[Blue Monkey]

The infamous submarine "bug". There are threads explaining how to use it to trigger war.

 

[Civinator]

AtomicCoffee, welcome at CFC!

For a Thirty Years' War scenario the 'submarine bug' for involving Sweden and France into the conflict, as posted by Blue Monkey, could be sufficiant. In my eyes the best way to involve both civs into the war against the Catholics is still to set them into an alliance against that civ, especially when the following war should last for a longer time.

As Sweden and France joined the conflict many years later and an alliance is working from the start of the scenario, you could do some simple settings, as I used them in the scenario SOE, to assure, that both civs can only start hostilities when having researched the proper techs by using the terrain settings for separating the belligerents. May be you could give Sweden ships that can transport landunits over the Baltic Sea only with a tech that is available when Sweden entered the war. France could be separated by a terrain, that isn´t passable for units with the wheeled flag and giving all French and Catholic landunits the possibility to upgrade to not-wheeled units with a proper tech and a Great Wonder that gives partially all French cities barracks for a short time so the French units can be upgraded.

I used this method to separate Germany and Russia in the WW2 scenario SOE until May 1941, when landunits without the wheeled flag are available for both civs and the current 'wheeled' landunits can be upgraded to units without that flag and are enabled in June 1941 (monthly turns) to cross the 'border terrain'. For creating a 'border terrain' in Europe I used the base terrain for jungle terrain and marked the single tiles with watchtowers, so they can be easily identified during the game.

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