The Great War mod is a total conversion modification for Napoleon: Total War. It creates an authentic representation of World War 1-era tactics, strategies and general warfare within the game. Including stunning new visuals that include entirely new models and textures for equipment, vehicles and more, the mod immerses you into the era with brand new gameplay unlike anything you've experienced in Total War before.
Here is the last new loading screen by Cedric37.
With this, we now have loading screens representing every major and some minor combatants during the war.
So question, how does one play as the USA?
They are only available in custom battles.
IIRC I once liberated Holland in a Long World Domination Campaign and the US appeared, replacing Holland's Flag and Units
We changed that in the update for a few reasons.
Google.com
I will not tolerate Holland anymore. It is the duty invested in me by his majesty the king.
Sorry, sorry, I've gotten so used to occupying the Netherlands on 1st turn that I kinda forgot their sovereignty