Iroquois

The Iroquois are a 1 star country in the 1861 conquest. They are a Monarch or Crown state and are allied with The Confederate States, Canada, The United Kingdom, Spain, Venezuela and Colombia. They are split into two areas with its western portion being somewhere in Montana and Manitoba and own the Thunder Bay area of Ontario. Their eastern portion consists of the Maritime States of New Brunswick, Nova Scotia, Prince Edward Island and portions of Quebec. Your general: Tokala (Cavalry) is located in the eastern portion. Your main focus is to help your allies to defeat the United States who are your main enemies as they pose the most threat. They are fairly difficult due to their lack of resources.

A.D 1917
The Iroquois now have a more historically accurate nation that they're located in the Midwest but they were likely brought back just to nerf the United States which is the only nation it borders. Its allies are the German Empire, Austria-Hungary, Bulgaria, the RSFSR, the Ottoman Empire, Mexico, Colombia, Cuba, and Egypt

Trivia:

 * The Maritime Provinces were under Canadian/British control by the time the Civil War began but there were more native lands in the Midwest