u/73Ncommando850

This my be a dumb question, but i have a union job and i live in MS, which is a right to work state, so i am kinda ignorant, but do i still have protections against being arbitrarily fired? I work a for an army contractor, but work
And live in an at will employment state

Edit: I guess everyone assumes i am not a union member, i joined the day i was eligible, spare me.