My friend Bruce Webster has an interesting article arguing that the "mighty nation" in 1 Nephi 22:7 is a prediction of the Spanish Empire, not the United States of America. I agree with his reading, and view the USA interpretation to be an example of ethnocentric reading by US readers of the Book of Mormon:
1 Nephi 22:7: “a mighty nation” = the Spanish Empire?
1 Nephi 22:7: “a mighty nation” = the Spanish Empire?