Prime Timeline
   | Year | Event | 
   | 2371 | 
         ● [1]
         The Mirror universe version of Chief O'Brien abducts Commander Sisko, in order to force him to convince the Mirror Jennifer Sisko not to complete a new sensor array for the Klingon/Cardassian Alliance. Sisko is able to succeed in this task and return to his own universe. [1]
      
 | 
   | 2372 | 
       ● [2]
         The Mirror Jennifer Sisko takes Jake to her universe, enticing Captain Sisko to follow. There he assists the Terrans in completing a copy of the Defiant in time to engage a Klingon force attacking Deep Space Nine. [2] | 
   
Colour key
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References