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.
VPA is the Vietnam People's Army along with two allies are the Laos army and the Khmer revolutionary army. This force is fighting against APA's invasion in a bloody war since 2039. Possessing elite guerrilla armies, the VPA stopped the attack of one million APA troops and forced this force to be mired in a fierce war of attrition.