Europa Universalis IV: Art of War - Announcement Trailer

A revamped Reformation system will let you relive the Thirty Years’ War in a series of unique in-game events to see how they fare in Europe’s greatest conflict prior to the 20th century. Once the fighting has settled down, rulers will be able to try a new set of diplomatic options inspired by the Napoleonic Era, including the creation of client states to support – or resist – revolutions.
In Art of War, players of Europa Universalis IV will add new possibilities to explore what Clausewitz called the “continuation of politics by other means.”