User blog comment:Callofduty4/Call of Duty: Ghosts: An early look/@comment-77.71.192.145-20130609034434/@comment-3038088-20130610011912

Judging by the gameplay, the enemies at the moment appear to speak English. I did see Spanish writing in the trailers. So maybe the enemy isn't a country, but an organization. The description did say that the enemies are "A technologically advanced global superpower".