The Green Nation is a Democratic nation. They are probably based on the United States of America from the Real World.
The Green are lead by a Green President who is rarely seen or referenced, with Colonel Grimm seeming to be the highest-ranking member of the Green Army. All of the nation heroes are Green.
The Green Nation is the homeland of Revolution protagonists, and is the main nation that General Plastro and his Tan Republic are at war with.
The Green Nation appears to be a relatively peaceful and friendly country, despite the fact that it does have a rather extensive military. The Green Nation seems to be based off of Real World’s Western European countries and the United States, as indicated by the accents and weaponry deployed by the Green Army.
The Green Nation also appears to be a democratic state, as it has a Green President, who is only shown in Army Men: Air Tactics. There is also a Green Chief of Staff, mentioned only in Army Men: Air Attack 2, who Vikki Grimm reports has granted a full pardon to Captain William Blade.
Geography
The geography of the entire Plastic World is unclear. The Green Nation have a series of mountains to the north, a vast desert to the west, and a series of swamps and bayous to the south. The map presented in the Green Plastic News depicts the Green and Tan nations as adjacent to each other and landlocked. The Green Nation just as the Tan may have domains extending around the globe the way the U.S. does with the Virgin Islands or Puerto Rico in the Real World.


Blue Nation relation with the Green Nation:
Occasionally, they will ally with the Greens. This is seen in Army Men: World War and in Army Men: Turf Wars. In Army Men: World War they have to save a Blue city from a Tan invasion and then together with the Blue Forces the Green army invade the Tan Republic. In Army Men: Turf Wars events, Sarge attacks the Tan forces together with the help of a Blue spy, who helps him along the whole game, giving him information about the movement of the Tan.
The creation of a nation
The Green Nation, created first as the Green Army first during the Great Grey War, like an offspring of the yellow and Blue nations, to help win the war, copying what the Reds did when creating the Oranges. This happened after the Yellows fell betrayed at the hands of Plastro’s Tan rebel forces, former Yellow leader now allied with the Grey, sacrificing their plastic reserves along with those of the Blues.
The few remaining Yellow leaders found by the Blues, at that time greatly diminished by suffering the worst of the Gray attacks on their practically conquered continent, reached an agreement that changed the course of history: Create the Greens.
The remaining Blue forces that managed to escape from their nation, fighting from the outside, were a great force that had been fighting in this way for a long time. But unable to replenish themselves, they were lacking important resources. They were the ones who found more than half of the Yellow plastic reserves abandoned (approximately 2/3), along with the hopeless Yellow leaders and 15% of the remaining Yellow armed forces. Those who found the rest were the Reds.
The Blues and Yellows somehow and for some reason that is difficult to explain reached a secret agreement: Create the Greens. The plan was basically to create a new hybrid army in a secret location, remote and unlikely to be found. The place would be some remote and of little use location, so that neither the Grays nor the Reds would go there by accident and find them. Their hope was that the Reds, the most powerful force resisting the Grays, would keep them busy long enough for this new army to grow without hesitation.
The Blues and Yellows’ prediction was correct: The Reds found the rest of the Yellow plastic reserves and created the Orange Army, diluting the Red with the Yellow to obtain a greater number of fighters. This made even the Reds twist the fight and just before being conquered they pushed the Grays, exhausted by the large size of the Red territory and by maintaining a war on so many fronts, the Reds taking a position on the offensive, although slow.
This situation gave the Greens enough time to grow, to the detriment of the Yellows consciously melting themselves, becoming extinct, and the Blues sacrificing most of their remaining resources, barely making it, taking shelter and hiding, to survive the end of the war. This is how they learned to be the best spies, only performing this task to minimize the use of their surviving soldiers, but achieving great and useful strategic achievements: information.
Thus, with a few years and without interference, the Greens were created en masse, to enter the war by surprise, twist the balance of the conflict and thus win the war. No one would suspect its existence until it was too late.
For this reason the Greens were never a conquering nation, and were never aggressive against the Blues, except for the mercenary species who worked on their own for the Tan in the Tannic-Green war. And it is also for this reason that the Greens always helped the Blues without any type of condition.
The Nation was created at the end of the war.
Sources for this article:
https://armymen.fandom.com/wiki/Nations#Green
https://armymen.fandom.com/wiki/Green_Nation


