But the Muslims marching unchallenged throught Christian Europe to reach Bohemia bugs me every time, as well as them sailing past Christian kingdoms to invade Norway.
Exactly, It doesn't make sense... The whole completely crazy novelty of the crusades was that thousands of men would just cross 4000 kilometers of land, without trying to conquer it, to conquer the faraway holy land... This is because the Holy land was the goal of the crusade... The muslims at that time didn't have this Holy land to liberate in Europe...
The Crusades should not result in a kingdom declaring war on an emirate, but on a character, leading his host, being at war with the infidels.
Let's take an example. Say I am playing the duke of Toulouse and the Crusade is called. I have several immediate options :
- I can give money to support it, I will pay a certain (quite heavy) amount of gold that just disappears really, it is assumed it helps finance the crusade. I have a small piety gain, but i will get this event again and again.
- encourage my knights to participate and actively support the crusade. I pay a heavy amount of money and the AI mobilizes a small host from my domain, that includes some of my courtiers and could very well include my advisers or heirs... this host joins the other crusading army, and who knows, my former marshal or my son might end up count of Tripoli... I will get the event again, but less frequently. Depending on how the game models it, I could control or not that small host.
- Join the crusade. I mobilise a host from my domain, with my character at the helm, which gains the trait crusader. This means I control my host and actually play the crusade, and in the meanwhile the realm is administered under a regency rule, which means that my diplomatic, Stewarding and Intrigue stats are affected by a new trait, "away to the crusades". I can than play the crusade, paying for my host (maybe at a reduced cost to model the support given by other christians), and go an liberate the holy land.
This would be the character driven events. regarding the dynamics, the result would be an automatic state of war with the infidels, somewhat akin to the automatic state of war against the indigenous populations in EUII : When I cross their territory, I automatically engage their armies or siege their casltes if I stop their. But these emirates are not at war with my duchy. If some of their land is conquered, by a crusader, it is a crusader land, automatically at war with the emirate whose land it just conquered. That would mean that the muslim try to conquer it back, but don't cross the mediterranean to conquer my realm..
Of course the situation is different where there is a land border, Spain, Sicily, Byzantine empire. There their would be more traditionnal wars between kingdoms and emirates..