Europa Universalis IV will be teaching you about the Art of War at the end of October.
Art of War has absolutely nothing to do with Sun Tzu, I’m afraid, instead focusing on the Thirty Years’ War. Expect deeper land warfare that lets you issue objectives to your allies and vassals, a major overhaul of the game map (with hundreds of new provinces outside of Europe, and over 100 new countries), more diplomatic options, completely reworked rebels and revolts, a revamped Papal election and curia system, the ability to manage fleets with a lot more ease, the ability to create your own custom vassal states within provinces, and a general reduction of tedious micromanagement. Some of which will actually be in the patch, even if you don’t buy the DLC.
I’m not even going to pretend to understand most of that, so you should probably watch the dev diary below to learn a bit more about it. Europa Universalis IV: Art of War is due out on 30 October.