She nodded and pointed a forehoof towards the flags. "Just Mirage, please. Anyways, the flags..." Swinging her forehoof over to the source of gun-smoke, she continued. "...It's for the gunners. In the off-chance that they get their sighting wrong and the red roofs don't make them realize they're aiming the wrong way, the flags are always run up during the day, so that a battery would have to be treasonously negligent to fire on the Equestrian flag and risk cannon-shot hitting the barracks."