Flags had been oftentimes used as rallying factors all through battles; troopers could gather around their colors for morale

https://shaneheqp027.slatecurrent.com/posts/exploring-the-various-civil-war-flags-more-than-just-banners-2

Flags have been usually used as rallying factors throughout the time of battles; troopers would collect round their shades for morale make stronger while faced with overwhelming odds.