Dosuun Invasion

Before the Invasion started the Duunas had authorized Dr. Berg to start his development and production of a new series of war droids that would be specifically designed to scan, identify and eliminate force users in preparation of a potential conflict with the Ordo. He was the driving force behind the project that would prove to be the only proper defense the Duunas had when the Ordo finally invaded after the collapse of all diplomatic negotiations. Several thousand droids were put into production and ongoing development ensured that the Duuinas were able to hold out much longer than what the Kings had initially expected. The Duunas also controlled the sky, being a space faring civilization they with large cargo vessel but also having aerial drones the size of an average space fighter provided a superiority in the sky for support. The Ordo deployed powerful force users adept in melee and ranged combat, but were restrained by their need of the gateway to even get to Dosuun. Close to the end of the invasion the Duunas were also given assistance from the Flame and the Seeker, neither of which belonged to the fourth Crusade. With their aid they were able to deceive the Kings and lure them into a fatal ambush that would end the war.

The majority of the War was focused around the central part of the planet, having an epicenter at Hall of the Founders. It was from there the Ordo invaded, spreading to nearby villages and cities whilst keeping a solid line of defense around their beachhead. The southern and northern parts of the planet was untouched by the war, although citizens from all across Dosuun were conscripted to help with the defenses trying to contain the Templars as much as possible. The Ordo were only able to control 21% of the planet at the peak of the war.

Twin Kings are lured into an ambush and are mortally wounded. The Ordo is forced to retreat and never recovers.

Without clear leadership the Crusade is ended shortly after the invasion and the members disband leaving Seswenna forever. The fourth crusade goes down in history as a false Crusade and the members are never heard from again most of them trying to forget their part in everything. The old temples of Seswenna are left alone for several hundred years and are what starts the fifth Crusade

Several of the Duunas combat droids including Guardian Droid, Seeker Droid and Extractor Droids were developed during the conflict.