Hi, i am not sure if if this is the right place to put this but i'm 99% sure this is not meant to happen. They may have changed something around in emperor but Tunis is gauranteeing mamlukes, allied to ottomans, ottomans declares on mamlukes - tunisia gets called into the war against mamlukes on the side of the ottomans. I do not have the emperor DLC - but i'm pretty sure this is meant to prioritize a defensive call to arms first and if tunis does not get called in its meant to get a truce with both the attacker and defender...