MCN meaning in Governmental ?

The Muscogee (Creek) Nation, rebranded in May of 2021 as simply the Muscogee Nation, is a federally recognized Native American tribe based in the U.S. state of Oklahoma. The nation descends from the historic Creek Confederacy, a large group of indigenous peoples of the Southeastern Woodlands. Official languages include Muscogee, Yuchi, Natchez, Alabama, and Koasati, with Muscogee retaining the largest number of speakers. They commonly refer to themselves as Este Mvskokvlke (pronounced [isti məskógəlgi]). Historically, they were often referred to by European Americans as one of the Five Civilized Tribes of the American Southeast.

The Muscogee (Creek) Nation is the largest of the federally recognized Muscogee tribes. The Muskogean-speaking Alabama, Koasati, Hitchiti, and Natchez people are also enrolled in this nation. Algonquian-speaking Shawnee and Yuchi (language isolate) are also enrolled in the Muscogee Creek Nation, although historically, the latter two groups were from different language families and cultures than the Muscogee.

Other federally recognized Muscogee groups include the Alabama-Quassarte Tribal Town, Kialegee Tribal Town, and Thlopthlocco Tribal Town of Oklahoma; the Coushatta Tribe of Louisiana, and the Alabama-Coushatta Tribe of Texas.