I'm playing as the Duchy of Munster, with the ultimate goal of founding the Kingdom of Ireland. Well as it stands I want to send about a thousand of my foremost lads to answer the pope's crusade in Urgell, on the border of France. Well I can't move my ships into any port. I even allied myself with the Duchy of Aquitaine, thinking maybe I needed to be in alliance to land at a port, but that still didn't work. What do you have to do?