The Mormon Battalion (sorry I said Brigade before) was part of the Utah terrority effort to support the Union. Authorized by the Leadership of the Mormon Church, to show their loyalty to the Union, There was no Mormon Secesssion attempt. In the 1850's a small band of Mormon zelots staged a raid and massacre of a small wagon train, then tried to blame the Ute Indians. This force of zelots was in fact turned over on Order of Brigham Young. Your History knowledge of the Western United States
is just as bad as your lack of real knowledge of the Civil War. You still think that the Little Napoleon was a great military General who single handly saved the Union.
For those of us who are interested in this, how much would you say the Mormons would/could do in this situation (Britain attempting stuff in the American West)?
Mormons and other settlers.
There really aren't that many regular troops here, so it's up to the volunteers.