The Western Front Armies is a multiplayer standalone for COH2 that adds two factions to the roster of playable multiplayer armies: the Oberkommando West (OKW) and the US Forces (USF). Each army can also be purchased separately.
Only keys listed as "Region Free" can be redeemed in any country.
EU Keys can only be redeemed within the EU.
US Keys can only be redeemed within the USA.