According to their history; the Colonial Reds were created by the year 1920 in Earth years. Their king was given sole power over them and when manufacturing new weapons for their military; he started taxing the civilians unjustly. This angered a very large group leading to a revolt and that sparked very intense attitudes between each other.
By 1921; they started a campaign against an unsuspecting Colonial Blues' town; leading to a large battle which scattered the Blues throughout the planet of Britannica.
By the year 2436; the Intergalactic Alliance of Freedom arrived on the planet; that's when the Redcoats started to become outgunned when Aaron Carter improved the weapons of their enemy. When their new weapons were used on the battlefield; the Redcoats were beaten to a pulp.