Ossus Project

The Ossus Project was a project jointly overseen by the Jedi Order and Yuuzhan Vong shapers to restore the war-devastated planet of Ossus. After the success of the project, many planets turned to the Vong to terraform their own planets. With the help and oversight of the Jedi, the Yuuzhan Vong were assigned to terraform one hundred worlds. At first, results were fantastic, exceeding expectations, but eventually something went wrong. Plants began growing deformed, and the inhabitants of the worlds began to sprout strange, bony growths, seen previously only in victims of the Vong during the Yuuzhan Vong War.

Though the Jedi expected sabotage, the galaxy at large, particulary the Galactic Empire blamed the Vong. When the Jedi convinced the Galactic Alliance to back the Yuuzhan Vong, the Imperial Council of Moffs was outraged. Invoking the Treaty of Anaxes, they plunged the galaxy into war once again.