A Big Gate open in the heart of Europe, this portal brought with it an enemy that humanity could never have imagined… They were the nightmare incarnate—grotesque creatures with no empathy for human life. Continental Western Europe fell in no time… Four months were enough for millions of people to suffer a mass genocide. The last resistance in Europe was held in Eastern Europe and the British Isles. With China's support, Turkey managed to halt the enemy’s advance into Asia. The Americans, with the help of countries from across the Americas and the United Kingdom, along with China, are planning a massive landing operation to push this new enemy back into the filthy pit from which they came… The world has united, and now it’s our turn to strike back.