Flags have been infrequently modified within the subject; squaddies might upload patches or symbols to represent victories or losses that

https://sergioxewj354.opalvector.com/posts/the-evolution-of-civil-war-flags-from-battlefields-to-modern-reenactments-3

Flags have been typically modified in the field; soldiers might upload patches or symbols to represent victories or losses that marked their unit's experience by war.