In 2030, the "shield" satellite system set up by the major powers in space ends the era of ballistic missiles. The danger of nuclear war is no more. In 2035, the United States fell into a great crisis of ethnic and political conflict. An armed conflict takes place within the United States and make lose its global leadership role. In 2040, the world is dominated by 12 multinational military organizations. The conflicts are getting more intense and the world is facing a new world war. The Endwar.
The RUS is a military alliance led by Russia. In the late 2020s, soaring oil prices helped Russia quickly recover its military superpower. After the emergence of the GLA, and the European Union established a joint army, Russia proceeded to create a military alliance RUS, with members mostly from the Soviet Union, Serbia and Mongolia. RUS possesses abundant resources and powerful armored forces to help it defend against the threat of EUA, GLA and APA.