Buy Hearts of Iron IV Allied Armor Pack now! You will receive the key for the DLC by Paradox Interactivevia eMail within the stated delivery time. This DLC contains new Armor Units of the British, American, French and Soviet forces for Hearts of Iron IV. Download Hearts of Iron IV Allied Armor Pack for free via the Steam network. Steam can be found here. The original game (not included in this offer) is required to use, respectively, play the contents of the DLC. This is an EU key that can only be used / activated within Europe.