The Siege of Jacinto City or the sinking of Jacinto was the turning point in the Locust War. With the Locust Horde suffering massive losses and a damaged infrastructure from the Lightmass Offensive; the Horde decided to the only way to defeat the Humans was to attack their last bastion of hope: Jacinto City. With Skorge using the Rift Worm to destroy cities and military installations around Jacinto, the Horde was then able to attack North Gate Agricultural Depot and water pipelines, depriving Jacinto of supplies. This lead the COG high command to regroup and make a counter-attack: Operation: Hollow Storm.