Praetorite Vong
this was the primary political body which governed the Yuuzhan Vong during the last stages of their intergalactic migration and the earliest part of their invasion of the galaxy. The Praetorite Vong was led primarily by domains that were loyal to the Intendant caste, which tried to assert its power over the other castes. Leadership of the Praetorite Vong was formed of highly-skilled High Prefects, supported by High Priests and high-ranking warriors. Despite that fact that they were not a military body, the Praetorite Vong was in command of the first assault force sent to begin the conquest of the galaxy. The war force was not overly large, and its leadership - Prefect Da'Gara and Executor Nom Anor - refused to underestimate their enemy. Their forces were controlled by the immense yammosk war coordinator based on Helska, which they had obtained without permission and was imperfectly developed. The plans of Nom Anor and the Praetorite Vong were thwarted when the New Republic forced the planet to quickly thaw and re-freeze, setting up a Mezicanley Wave and destroying Helska. The yammosk was killed, and the Yuuzhan Vong forces routed. Unfortunately for the Republic, the Praetorite Vong was only the tip of the iceberg which represented the Yuuzhan Vong invasion force. After the debacle at Helska, the Praetorite Vong was restricted in its actions by Tsavong Lah and the Yuuzhan Vong commanders. Note that the New Jedi Order Sourcebook indicates that the Praetorite Vong was a subgroup of the military.