In fact the entire battle had come to a deadlock as far as she could tell, with the Equestrians so determined to defend themselves that the Mareitanians simply couldn't push forward, and vice versa. The cannons were stuck not being able to fire, so no help was coming from them, and the sheer volume of bombs required to bust through the shield was more than the pegasi could drop at any one time. Contrary to that, the order to cease wasting bombs was going out, allowing Rainbow and her squadron to fly back to the southern side of the river to safety.