Do you want the game to be realistic? Then experienced military personnel should play an important role. Add one or more types of military academies. After that, if the player wants to create an army, he will have to: 1. Produce the appropriate equipment. 2. Training in the relevant specialty and number of units. This change will also allow the manpower attached to the units to be removed and it will be possible to sell, exchange or donate equipment without manpower. All this will make the game more diverse and realistic.