In army contexts, flying flags serve as brilliant symbols of honor and sacrifice

https://deanunva430.vantagequill.com/posts/student-rights-or-school-rules-who-decides-which-flags-fly-2

In military contexts, flying flags function major symbols of honor and sacrifice. They are raised in the time of ceremonies to count fallen infantrymen, reminding us of the cost paid for freedom and the values that unite countries.