At the beginning of a game, have an event with two options: Invasion later on, or no invasion at all.
So that you could use the Nahua culture etc. for a designed ruler in a place on the Atlantic coast of Europe without worrying about imminent destruction.
Of course you could still choose the invasion option and face the challenge.
So that you could use the Nahua culture etc. for a designed ruler in a place on the Atlantic coast of Europe without worrying about imminent destruction.
Of course you could still choose the invasion option and face the challenge.