One of the few nations that no longer exist
In this RW standard time detonated the first and, to this day, only Great Army Men World War, also known as the Grey World War. It was a sudden large-scale coordinated attack on all known nations of that time: the Blues, the Yellows and the Reds, perpetuated by the first great nation: The Gray nation.
The Red, Blue and the recently emerged nation, the Green, pressed from several fronts, suffocating the Grays, saving the Yellows. But meanwhile allies of the Greys, the Tan, a secretly separated Yellow faction, destroyed the Yellows in no time by placing them all on a single place in the front, declaring and achieving their immediate independence. Then the Tan betray the Greys, cementing their fall at this conflict.