Dominion War: First Battle at Chin'toka <1500

Apart from the short and successful campaign to retake starbase Deep Space 9 during Operation Return about eight months previously, the Federation and Klingon Empire was fighting a wholly defensive war. Key Federation planets including Betazed, Coridan, and Benzar all fell to the Jem'Hadar, while the core worlds of Vulcan, Alpha Centauri, and Earth were coming into range of the Dominion war machine. However, with the sudden entry of the Romulan Star Empire into the war (DS9: &quot;In the Pale Moonlight&quot;), the allies had enough combined firepower to launch a full offensive on Dominion-held territory. Starfleet, the Klingon Empire, and the Romulans agreed that the war could be won only by taking the war into enemy territory; they attacked Chin'toka.