Flags were every now and then used as rallying features for the duration of battles; troopers could collect around their colorations for morale

https://johnnyirgi379.cavandoragh.org/collecting-civil-war-flags-a-guide-for-enthusiasts

Flags have been on occasion used as rallying features at some stage in battles; troopers could bring together around their colors for morale assist whilst faced with overwhelming odds.