Next get 3 Bowmen Man at Arms (MAA) divisions. How to raid in Crusader Kings 3: Crusader Kings 3 Guide & Tips. Seeing as the war is already a slam-dunk, we declare war on him. To do so: You will then choose your Casus Belli and the war will begin. Men-at-Arms are professional soldiers, as opposed to levies, which are citizens who take up arms. In the bottom right corner of the screen, there are several icons that change the way the world is displayed: by realms, duchy titles, empire titles, etc. Crusader kings 3 how to declare war on desmond