Yeah but some of them were just disastrous because they were not organized at all. They called them but didn’t do anything to make sure they were effective or even supplied. Just emboldened the other side.
Well, the First Crusade succeeded wildly beyond all expectations. And - rewriting history here - if Richard Lionheart had just sucked it up and taken Jerusalem (after beating Saladin twice in prior engagements), that might as well have been that. But... he was worried about the security of his throne back home in England... and so...