The Atlantic Alliance is the name given for the Eastern states of the United States of America, after the central states have all succumbed to desertification leaving only the West and East Coasts. The Atlantic Alliance is allied with the European countries, and consider genetic engineering immoral. They rely on cybernetic technology to survive the global climate changes.
The troops of the Atlantic Alliance are enhanced by cybernetic upgrades, like the player. They are only seen using the standard-issue UD-M1 Bulldog Rifle as a weapon.