After Colony [AC] 196: A young revolutionist by the name of Mariemaia Khushrenada Barton lead a campaign against the ESUN, in blind belief that it was her father's, Treize's, will. In secret it was Dekim Barton, the original founder of Operation Meteor, trying to conquer and bring about the original operation of conquering the Earth and all the Colonies. At the end of that intricate battle, one of the former members of the original OZ killed Dekim once they found out that his plans was against Treize's, thus ending the Era of War in the Earth Sphere and the destruction of the Gundams and all other weapons of War.
After Colony [AC] 199: Three yeas have passed since the events of the Mariemaia Incident. All weapons of war have been believed destroyed and peace has been on shaky grounds between the Earth and the Colonies. The Colonies are independent and have been self-govern for the last two years, but the New Earth Sphere Alliance (NESA), a newly formed organization within the ESUN no longer thinks this is good and wishes to seize them under any means. Mobile Suits have been reintroduced and slowly the NESA has been conquering and controlling the Colonies with might. Now there have been rumors spreading of secret organization that has begun to fight back against the NESA. A new war has arisen from the ashes from ones of old and history has drastically started to repeat itself. Will there be too high of a price to pay for the return of peace?
