By popular demand, the national flags for Knoxville and Kingsport.
Sometimes you can't beat the real world. The design comes straight from the Knoxville website, which has a very detailed description. The red field matches the army markers and flags we're using in the campaign, and the colors have been tweaked to show up a little better against that red background.
Again, I let real world bureaucrats do the heavy lifting for me. In this case, we've got the sun rising behind Bays Mountain. Once more, we add a blue field to parallel the colors of our armies. It's just that simple.