Yammosk Yammosks , also known as war coordinators , were Yuuzhan Vong creatures mainly used as coordinators during battles to send orders to other spacecraft , such as the many coralskippers , to optimize their actions . Characteristics . This bio - creation was one of the most distinctive creatures within the bestiary of the Yuuzhan Vong empire . Yuuzhan Vong biotechnology was generally not self - aware , but yammosks were at least partially sentient . The appearance of these animals was a distinctive bulbous head with an array of tentacles . Its only solid bodily structure was its single tooth which was hidden within its boneless flesh . Physically , yammosks resembled huge brains , kept in vats , which trailed thousands of tentacles . The tooth was capable of burying itself against an object with incredible force allowing it to break through rock and ice which it did by the secretion of acids . After breaking through an obstacle , the yammosk began the process of burying itself in a crevasse which served as its " " home " " . The life cycle of a yammosk resulted in them being spawned rather then being created . Immature members of this species were required to be partially submerged into nutrient liquid but in time they became full air - breathers . When they were young , they were known to be quite pliant . On certain occasions , Yammosks were placed on covert operation missions where the creature used its talents to link the mind of Yuuzhan Vong commandos . This provided such operatives with a secured means of communications as their thoughts were linked to one another . A yammosk was considered the physical form of the Yuuzhan Vong god Yun - Yammka , the Slayer body manifested onto the mortal plane . In addition to forming a friendship with a commander , they were also tended to by a yammosk keeper . Abilities . A yammosk was an incredibly powerful organism that served as a type of biological Battle analysis computer . It did this through empathic abilities that bordered on telepathy and the creature was capable of communicating by the manipulation of gravitational waves . Using this , it was typically given control over a brood of dovin basal s which were slaved to it . The yammosk typically saw its charges as its children and attempted to protect them and when endangered , coordinated their actions in battle . As such , these war biots had a single goal : the coordination of the Yuuzhan Vong ' s invasion forces . Its abilities allowed it to coordinate landing operations , starfighter battles and even long full scale sieges . The capacity to sense gravitic signatures made it capable of keeping track of other Yuuzhan Vong vessels . The one weakness in its powers meant that if destroyed or badly injured , a Yuuzhan Vong war force typically descended into chaos without the guiding influence of its yammosk . These creatures were described as possessing limitless energy and had enormous battlefield advantages . In at least one case , the intense energies used to control its forces meant that enemy ships were rendered inoperable if they flew too close to the planet where the yammosk resided . This same yammosk was capable of projecting powerful energy beams though this specimen was later described as being " " defective " " . When spawning a new yammosk , the parent entered into a mental link with its offspring whereupon all its knowledge was transferred to the new war coordinator . Each yammosk was carefully protected and pampered — unprecedented for a war biot . To further enhance a growing yammosk , slaves were often confined in a yammosk vat with orders to massage its tentacles . This provided the yammosk with companionship but was a terrifying experience for the slaves , because the yammosk could mentally manipulate and communicate with them . Growing yammosks were kept in fluid that smelled like a combination of garlic and nlora perfume . To further their effectiveness in battle , high ranking Yuuzhan Vong commanders were required to develop a rapport with their yammosks allowing them to command their forces in battle . This was done so by gently touching the thick blue vein that ran between the yammosk ' s eyes . Through this means , a yammosk was capable of influencing the minds of all Yuuzhan Vong combatants within range by the use of gravitic waves . Their unique nature meant that a yammosk was perfectly capable of recognizing a Jedi in its midst , as it sensed the presence of the Force . However , it was stated that this was due to the yammosk parent ' s previous experience with the Jedi . Weakness . A yammosk ' s control over its forces was capable of being disrupted through the use of gravitic amplitude modulator s . This essentially jammed the gravitic spectrum of the yammosk making it difficult for them to control their broods . However , if a second yammosk was present in the battlefield , it was capable of taking over command without any hindrance to the Yuuzhan Vong forces . Over the course of the Yuuzhan Vong War when the New Republic developed a means to disrupt the war coordinators control , the Yuuzhan Vong ' s Shapers were tasked with developing a yammosk species immune to the enemies technology . Related species . The yammosk had a number of species which were distant kin to it . These included the telepathic jamming shreeyam ' tiz , the world coordinator dhuryam and the Grotto of Yun - Ne ' Shel . The Shamed One Onimi actually gained the ability to connect to the Force by grafting yammosk cells onto his brain which resulted in his deformed appearance . History . The first yammosk was said to have taken centuries to create and perfect but the resultant war - biot was so valuable that it became an integral asset within the Yuuzhan Vong ' s war machine . Before the Yuuzhan Vong War , Executor Nom Anor was known to have procured a Yammosk for the Praetorite Vong in order for them to gain a stronghold in the galaxy . This creature was later described as being " " defective " " . In 25 ABY , the Praetorite Vong worldships under the command of Prefect Da ' Gara possessed a yammosk within their ranks . After they made their entry way through Vector Prime , the invasion force settled in the Helska system where they made a base on the fourth ice world . The yammosk itself later departed its craft , cracked the ice with its mighty tooth and established a base for itself deep underwater where it nested near the heart of the world which kept it warm . This creature was later used during the Breaking of captured Jedi Knight Miko Reglia where it projected countless visions of him dying . This war coordinator was instrumental in commanding the Yuuzhan Vong forces against the New Republic military that attacked them and easily managed to repel these forces . At the time , the Yammosk was also ready to spawn with its offspring and planned to settle on the neighboring world of Dubrillion . However , the war coordinator was ultimately killed during the Battle of Helska IV . During the Yuuzhan Vong War , the next reported sighting of a yammosk was during an experiment that was being conducted by the Yuuzhan Vong . This involved a number of captured members of numerous species being placed onboard the Cluster " Crèche " where the slaves were taught to soothe the war coordinator present on the ship . While unknown to many , this yammosk was vital in a plot to devastate the Fondor system and its important shipyards . The Jedi Wurth Skidder had infiltrated the Clustership and sought to influence the yammosk by forming a rift between the Yuuzhan Vong and their new Hutt allies by making it inform its commander that the Hutt were going to betray them . However , the creature ' s parent had had experience with Jedi before leading to his discovery and capture . Ultimately , this war coordinator did not participate in the Battle of Fondor due to a rescue operation planned by Kyp Durron in order to rescue Skidder . Kyp Durron later slayed the yammosk as revenge for the Breaking of his friend Skidder , leading to the death of the Clustership , as it was linked to the creature , which in turn brought about the death of the vessel ' s crew . A single yammosk was captured by the New Jedi Order and was transferred to Eclipse Station where Cilghal attempted to study it . However , when the planet Eclipse was attacked by a Yuuzhan Vong armada , the yammosk signaled a coralskipper to attack it and destroy the captured yammosk to prevent it being interrogated by the enemy . A yammosk ' s ability to manipulate gravitational waves as a mode of communication was discovered by Danni Quee , which allowed the New Republic to locate yammosks in capital ships and target them during battles . Later it became possible to jam the yammosk ' s communication , dramatically lessening the efficiency of the Yuuzhan Vong fleets . Later in 28 ABY , the New Republic Intelligence Service determined that Supreme Overlord Shimrra Jamaane was heading to the library world of Obroa - skai in order to consult a vital piece of information for the war . This led to a plan to kill the Yuuzhan Vong leader which was led by Jaina Solo , who attempted to use the captured enemy ship known as the Trickster to sneak into the enemy lines and cause chaos within their fleets . This also included a jamming of the war coordinator on the planet Obroa - skai , to shatter the enemies ' coordination . However , initially , there was no diminishment within the Yuuzhan Vong forces , until it was realized that the suspected ship carrying the Supreme Overlord was carrying its own yammosk , which had taken command of the warriors after the primary one had been jammed . Ultimately , this yammosk was killed during the battle . As a result of the enemy jamming efforts , Yuuzhan Vong pilots were given training to better themselves in combat in case their commanding yammosk was destroyed in battle . After the end of the war , it ' s possible the yammosks were reincorporated into the wildlife on Zonama Sekot .