The Romulan front was the area where the forces of the Romulan Star Empire and the Dominion clashed during the Dominion War. It was the opening of the front in late 2374 that convinced the Federation Alliance to launch an offensive against the Cardassian Union.

In that year, Legate Damar diverted several Jem'Hadar and Cardassian ships to the front, reducing the ship levels in star systems such as Chin'toka. (DS9: "Tears of the Prophets")

In a possible deleted scene from the episode, Garak guesses correctly that the Dominion starships in the Chin'toka system had been sent to the Romulan front.