There are 3 different branches of the military Land, Naval and Airforce when a unit is built they automatically get assigned a commander who has its own trait, skill and rank (Higher rank allows more units under there command). There are 9 different tech trees to advance through: Land, Armor, Naval, Air Force, Industrial, Land Doctrine, Naval Doctrine, Air Force Doctrine and Secret Weapons. These tech teams will advance a nation's technological level. Technology: a nation can have up to five tech teams, depending on the size and industrial development of the nation: Germany will have five tech teams, Poland only three. IC is increased by building factories in your territory. Production takes up Industrial Capacity (IC). Production: nations can produce land divisions, ships, air wings, land forts, factories, etc. The player is also able to preform diplomacy, having the power to form alliances, foster trade agreements and guarantee the independence of other nations. The player has to be responsible for supplies, oil, rare materials, energy and manpower while waging war across the world.

Hearts of Iron 2 is quite complex when it comes to management. Playable scenarios include, among others, the Spanish Civil War, the Battle of the Bulge and Downfall, the planned Allied invasion of Japan.

The game also features several smaller scenarios, in which the player only controls the nation's military. Awakening the Giant (1941): Starts on June 22, 1941.Blitzkrieg (1939): Starts on 1 September, 1939.The Gathering Storm (1938): Starts on September 1, 1938.Road to War (1936): Starts on January 1, 1936.Play the game by going to Hearts of Iron IV Download.In Hearts of Iron 2 the player can choose to play as any country on the world map in the time period of 1936-1947. Countries may request or provide military access, sign non-aggression agreements or guarantee the independence of other countries. The game also tries to recreate the diplomatic relationships of the past. The game is divided into small regions called provinces.Д¬ountries may create nuclear bombs if they have the right technology. Mobilization is shown as a policy that can be adjusted by players with the right amount of political power.

More factories are liberated for other purposes as the countries become more mobilized. The dockyards and military factories are built by civilian factories that also construct other structures.Д¬ivilian factories oversee commerce with other countries and provide consumer goods for civilians. Ships are provided by dockyards, while equipment is built by military factories. The air force and navy need equipment and workforce to fight. Players may customize, command and train divisions composed of different kinds of tanks, infantry and other units. A countyвЂ™s military is composed of aerial forces, ground forces and naval forces. Hearts of Iron IV is available in multiplayer or single player mode. The grand strategy war game allows players to play as any country in the 1939 or 1936 start dates. Hearts of Iron IV focuses on World War II.

Hearts of iron 4 guarantee independence