Ok so I'm a king of Portugal and i'm waging a holy war to take a duchy in Andalusia. The Pope calls a crusade against Andalusia. Fine, they can help me out. Nope. They disembark and immediately destroy my army 2:1. This is bullshit. I am a catholic native to these lands and these crusaders show up and clash their holy armies of catholic god, against my holy army of catholic god and destroy me because they want those lands. Sad, didn't jesus teach not to be greedy or something?