Unnamed Jem ' Hadar fighters List of unnamed Jem ' Hadar attack ship s . By year . Engagement with the USS " Odyssey " . These three unnamed Jem ' Hadar attack ships engaged the , , and as they attempted to retrieve Commander Benjamin Sisko from his imprisonment by the Jem ' Hadar in 2370 . The task force was unable to destroy any of them and one of the fighters destroyed the " Odyssey " with a suicide run . ( ) Near encounter with the USS " Defiant " . These two unnamed Jem ' Hadar attack ships were traveling through Dominion held space at warp 5 when they detected , unbeknownst to them at the time , the traveling under cloak . They scanned the area with antiproton beam s but were unable to locate the anomaly they initially detected and would resume their course on their original heading . ( ) First engagement with the USS " Defiant " . These three unnamed Jem ' Hadar attack ships discovered the USS " Defiant " under cloak near the Callinon system . They opened fire on the ship and would eventually overwhelm the Federation starship , even after having one of their own ships destroyed by it , before boarding it and taking the crew captive . ( ) Battle of the Omarion Nebula . These 150 unnamed Jem ' Hadar attack ships engaged the combined Cardassian / Romulan fleet that attempted to destroy the in the Omarion Nebula . In the ensuing battle , these warships would destroy the 20 invading enemy starships , along with the . A number of these ships were also destroyed in battle by the . ( ) Encounter at a Class J gas giant . These two unnamed Jem ' Hadar attack ships were dispatched to destroy the Karemma starship that was undergoing illegal trade negotiations with the Federation near a class J planet in the Gamma Quadrant . ( ) Invasion fleet . In 2373 , several Jem ' Hadar fighters , and several Jem ' Hadar battle cruiser s , totaling almost fifty ships , hid in a nebula located in Dominion space in the Gamma Quadrant in preparation of invading the Alpha Quadrant , that was discovered by Worf and Elim Garak . Several of these ships pursued the Starfleet runabout , assisting in its capture . ( ) Scouting mission in enemy space . This unnamed Jem ' Hadar patrol ship was conducting active polaron scan s on a sector of the Alpha Quadrant in 2373 where it was unknowingly encountered by the . The " Rotarran " commander , General Martok , declined to engage the inferior ship , much to the disappointment of the crew . ( ) At Ketracel - white facility . This unnamed Jem ' Hadar attack ship visited a Ketracel - white facility in early 2374 to replenish supplies of Ketracel - white . The ship beamed down 110 empty canisters and was restocked with 110 full ones . ( ) Encounter near a dark nebula . These two unnamed Jem ' Hadar attack ships engaged the attack ship acquired by Sisko that was in Dominion held Cardassian space . They pursued the stolen attack ship to the edge of a dark nebula where they eventually broke off pursuit after causing heavy damage to Sisko ' s ship . ( ) Pursuit from Trelka V . Ten unnamed Jem ' Hadar attack ships pursued the four surviving Klingon Birds - of - Prey that had participated in General Martok ' s cavalry raid on Trelka V in 2375 . They were prevented from intercepting Klingon ships , when Kor and six volunteers sacrificed themselves by using the engage the Jem ' Hadar ships , thus delaying them long enough for the other ships to reach Starfleet reinforcements . ( )