Technically there is. There is no peace treaty between the U.S. govt and the Seminole tribe.
5.56mm
There have been a number of treaties between both the Florida and Oklahoma Seminoles. There was no treaty between the die-hard tribal members that ran off into the swamps because it was just too much trouble and expense to round them up - hence, the Seminole contention that they were unconquered. The fact remains that as a federally recognized tribe, i.e., “Indian Entities Recognized and Eligible to Receive Services from the United States Bureau of Indian Affairs”, they have clearly surrendered.