United States of America
The United States of America (USA) is a sovereign human nation on Earth. It and its people have a knack for attracting all sorts of weird things, from aliens to dangerous terrorist organizations. It also stands at the forefront of defense against extraordinary phenomena, being the founding country of the Adventure Team, G.I. Joe, Skywatch, the EDC, and M.A.S.K.
The Dire Wraiths arrived on Earth at some point during the 1800s, with at least some Wraiths arriving in the early-era United States. The United States began a railroad project reaching to the west coast. The construction of the railroad awoke a handful of the Eurkarian Autobots and Decepticons before they returned to stasis. They reawakened years later to combat the rampage of the Elder Gods before the "Autobots" left for Canada to revive "Optimus Prime" The United States was one of many nations to send ships to the international fleet in the North Atlantic as a response to the Elder God but their ships were destroyed by the fish people.
Garrison Kreiger's parents emigrated to America at the onset of World War I. The war caused a strong anti-German sentiment to rise in the US. In 1941, the US was invaded by Japan via the attack on Pearl Harbor prompting the United States to join World War II. One of their most famous military units was the Screaming Eagles commanded by Sergeant Robert Savage.
At some point prior to the 1980s, the US formed the Adventure Team to combat unusual threats, but they were disbanded in the '90s following the seeming demise of Mike Power. Another organization founded was Skywatch which dealt with aliens specifically the increasingly large number of Cybertronians arriving on Earth. In 2006, the US founded the successor to the Adventure Team, G.I. Joe.
In 2008, the Decepticons invaded the Earth basing themselves in New York City with their forces destroying a large part of the continental United States. After the invasion, the US deployed G.I. Joe to combat the shadowy terrorist organization Cobra.
The Autobots later allied with Skywatch and thus the larger US government before they left to combat Galvatron on Cybertron. When Cybertron was reborn, the Autobots severed all ties with the United States upon returning to their homeworld.
After the wholesale destruction of Nanzhao had resulted in G.I. Joe's existence becoming known to the public, the United States ordered the team to promote a family friendly atmosphere prompting the creation of groups such as the Admin Force, who performed PSAs to promote G.I. Joe's good message. Five years down the line however, Cobra had abandoned its philosophy of violence and G.I. Joe was subsequently called before the United States Senate to justify its continued existence. At the same time, the US deployed the Joes to handle separatist rebels on the Schleteva-Galibi border. G.I. Joe ultimately proved that Cobra was still plotting for dominance and caused the collapse of the organization. Despite the success of the mission, the United States ultimately pulled the plug on G.I. Joe's funding.
Sometime afterwards, Skywatch was disbanded and replaced by the multinational Earth Defense Command. As the largest paying nation, the United States received special privileges with all the command staff being American and thereby allowing the President to make decisions on behalf of the entire EDC.
In response to Optimus Prime's controversial annexation of the Earth, the US President put Joe Colton in command of the EDC, who brought in old G.I. Joe veterans. M.A.S.K. was deployed to act as G.I. Joe's reinforcements against the Cybertronians.
After the Revolution incident, G.I. Joe severed ties with the US government to become an international peacekeeping team.