Flags had been at times converted in the area; squaddies could upload patches or symbols to represent victories or losses that
https://myleslgdi553.summitquill.com/posts/flags-of-honor-the-symbolism-behind-civil-war-colors-and-emblems
Flags were mostly changed in the field; infantrymen could add patches or symbols to represent victories or losses that marked their unit's journey because of war.