Milan is your third personal union, handed to you through a scripted event. The war itself is straightforward — use it as an opportunity to hit some Italian minors on the side if you're working toward the Italy missions. Three unions at once is the requirement, and at this point you should have all three running simultaneously.

Milan is your third personal union, handed to you through a scripted event. The war itself is straightforward — use it as an opportunity to hit some Italian minors on the side. Three unions at once is the requirement, and at this point you should have all three running simultaneously.