Christian church vows to fight tribal order to leave Wind River Reservation

I frankly am a bit distressed by the headline's use of "Christian" church.  That's a rather loose use of the term Christian, although it's not incorrect.

According to its website, the "Foundations For Nations is a multi-cultural and multi-generational non-denominational Christian church."   There's absolutely no such thing whatsoever as a "non-denominational" church.  100% of all churches have some theological grounding that puts them in some denomination.  This is some sort of Protestant Church, most likely a sort of do it yourself Evangelical Church, that has a focus on the Wind River Indian Reservation.  The controversy arises due to the pastor taking on the Sun Dance, which is a religious ceremony practiced by a variety of plains tribes.