Tholian Assembly The Tholian Assembly was the xenophobic interstellar government of the Tholian species . The territory of the Assembly included the Tholian homeworld and its colonies . This was an Alpha Quadrant power . ( ; ) Location . The border to the space annexed by the Tholian Assembly was located in free space that had not yet been surveyed by the in 2268 . ( ) In 2293 , the location of the Tholian Assembly in the Milky Way Galaxy was labeled in a star chart that was in Captain James T . Kirk ' s quarters aboard the . ( , " okudagram " ) According to K ' Ehleyr , in 2367 , wars fought by the Klingon Empire tended to drag in the neighboring star system s , the Tholian Assembly , the Ferengi Alliance and eventually the Federation into the fighting . ( ) History . By 2152 , the Vulcan High Command had only limited contact with the Assembly . When s traveled far beyond their territory to salvage a 31st century , it was discovered that the Assembly may have been a faction in the Temporal Cold War . ( ) In 2268 , the entered a region of space annexed by the Tholian Assembly in response to a fake distress call sent by mirror universe Tholians through an interphase . Three weeks later , the starship attempted unsuccessfully to rescue the " Defiant " from the spatial interphase . ( ; ) The 2350s saw an increase in hostilities between the Assembly and the Federation . In 2353 , the Tholians destroyed a Federation starbase . ( ) Starfleet developed Tholian - based battle simulations . In 2355 , during one such simulation , William T . Riker used a notable strategy to calculate a sensory blind spot on a Tholian vessel . ( ) In 2371 - 2372 , a Tholian ambassador was present on Deep Space 9 . ( ) In 2372 , a Tholian observer was killed in a bombing on Earth by a Dominion infiltrator . ( ) In 2373 , the Tholian Assembly signed a nonaggression pact with the Dominion , and remained neutral during the Dominion War . Odo considered this to be an impressive inroad into the Alpha Quadrant for the Dominion . ( ) In 2379 , there was a Tholian ambassador on Romulus . ( ) Appendices . Background information . " Tholia " was a word – possibly a proper noun – that Klaang mentioned in the episode , but which Hoshi Sato could not translate . According to " The Worlds of the Federation " ( p . 150 ) , Tholia was in fact the home planet of the Tholians . According to " " ( pp . 35 & 37 , " United Federation of Planets II " ) and " " ( " Federation Historical Highlights , 2161 - 2385 ) , Tholia , the capital world of the Tholian Assembly , was located in the Alpha Quadrant . Federation scientists theorized that Tholia was a Y - class planet . The dominant species on Tholia were the non - humanoid Tholians . Diplomatic relations were established with the Federation in 2271 . The primary Tholia was a . In the alternate reality comic " The Tholian Webs , Part 2 " , Commander Loskene accuses the of crimes against the Tholian Assembly , the ship having inadvertently intruded on Tholian space . Loskene plans to tow the craft back to the Tholian homeworld to answer for those deeds . However , once the " Enterprise " manages to escape , Loskene threatens the ship ' s crew with " the wrath of the Tholian Assembly " and warns that war will follow , the next time their civilizations meet .