The Chimera is a multinational task force created by the United Nations with the original purpose of providing intelligence and military support for the investigation into the Shanghai Crash. This UN-led organization's arsenal consists of many foreign military equipment. They are superior to the U.S. Army, but inferior to the Cartel in technology.
The Chimera is the counterpart of the Task Force Talon from Act of War, as both are relatively most technologically advanced factions, but beaten in certain parts to the antagonist faction, namely the Consortium's stealth and railgun technology versus the Task Force Talon.
The faction's name is fitting as the organization itself and arsenal are of mix of foreign origins.
During development, the Chimera was originally conceived as a special unit of super soldiers organized by select members of the United Nations, under the placeholder name 'Tererra' (a modification of the French word 'terre', meaning 'earth').
↑Act of Aggression(French). jeuxvideo.com (2014-03-31). Retrieved on 2014-04-1. “Deep in debt, the poorest states have all gone bankrupt, leaving behind an unprecedented economic crisis. These conditions favor the growth of Cartel, a military-industrial group infiltrated various government organizations and agencies for several decades. With its fascist attitude, Cartel worried and forcing the United Nations to respond... Three factions will be playable multiplayer: The Cartel with high units tech...”
↑Bryan Dupont-Gray (2014-03-22). Act of War Developers Unveil New IP at GDC. Hardcore Gamer. Retrieved on 2014-03-23. “...one that is set two decades into the future as players take on the role of a group of super soldiers organized by select members of the United Nations. “During the solo campaign, the player will be a head of a special unit Tererra and these special units are under UN command and formed by personnel that come from the different country members from the UN. Nobody knows about other than few of the UN members,” said Eugen Systems’ Co-Founder and Chief of Executive Alexis Le Dressay.”