The Gadsden flag, proposing a rattlesnake and the word "Don't Tread on Me

https://jaredxnsc037.focalledger.com/posts/civil-war-flags-in-reenactments-authenticity-and-representation-2

The Gadsden flag, proposing a rattlesnake and the phrase "Don't Tread on Me," turned into followed by means of some Confederate units as a symbol of resistance towards perceived oppression.