Thousands of ballistae are being pushed by players all around the city that they have prepared by Ivonna and the players from the Alliance Kingdoms' faction even before the invasion started. There are also bigger ballistae on top of the towers and walls around the city that are attached and bolted on the floor of the towers and walls. If they could bring all the ballistae, catapults, and trebuchets that the other factions have prepared, there will be more than hundred of thousands of them, but sadly it will take more than a week to bring all of them to the Cruzm Kingdom.