If you set an objective for a specific unit which is a step up in the hierarchy, all other units underneath that unit will attempt to fulfill this objective. Each unit is part of a military command hierarchy. Hearts of Iron 3 includes significant features of automation, one of which is the military.
It is usually not good to try and start as a country like the USSR or the United States simply because the sheer size of the country can quickly overwhelm you. These countries are large enough and close enough to the action that you can take an active part in the game, but they’re not so large that they become quickly overwhelming. Some examples are Italy, The United Kingdom, and Portugal. Most new players to Hearts of Iron 3 will find that it best to start playing the game as a medium country early in the game’s timeline. This guide provides some quick tips which should make it much easier wrap you head around the game. Heart of Iron 3 can be a difficult game to learn, but there are ways to make it easier on yourself.
