All other nations use the generic national focus tree. The seven great powers and Poland have a unique national focus tree in the base game.Īdditional countries - as detailed below - received a unique focus tree as part of different DLCs. It is important to note, however, that player nations are not bound by this and as such their in-game actions can still force the AI to pick somewhat less than historical choices. Players wishing to have a more historical-based campaign can choose to do so by ticking the Historical AI Focuses option on the country selection screen map just before the start of a new game. National focusĭue to the semi-random nature of the AI it ensures that no two games will play out in precisely the same way. The individual options can range from political, diplomatic and warfare-related focuses to more economic and research-related focuses. These paths may be based on actual historical situations or on alternative historical possibilities. Each country has a focus treerepresenting a number of progression paths branches available to that nation. The focus trees allow the players and the AI to direct the development of their nation.

National focus trees serve as a replacement for the mixture of decisions and triggered events which directed countries in previous iterations of Hearts of Iron.

Hoi4 focus tree maker