|Battle of Betazed|
|Part of Dominion War|
|Raid on Coridan||Second Battle of Vulcanis|
The Dominion attack was a stunning success, with the planet and its outlying colonies capitulating within ten hours. By sending their fleet, through the Kalandra sector, the Dominion was able to catch the Tenth Fleet, which was stationed to defend the world, by surprise and out of position on a training exercise. The Tenth Fleet fought on despite this and was devastated trying to protect the planet. That coupled with Betazed's antiquated planetary defences led to one of the Federation's most humiliating defeats in the war. (DS9: "In the Pale Moonlight")
- According to The Dominion War Sourcebook: The Fires of Armageddon the Tenth Fleet was completely destroyed defending the planet.
Later that year, the Second Fleet launched three unsuccessful attempts to liberate the world from Dominion occupation. (DS9: "The Sound of Her Voice") As part of the Second Fleet, the USS Persephone participated in the Battle of Betazed during this time, according to Lieutenant junior grade Zachary Stiles in 2410. (Chronicle: "Best Laid Plans")
|Major battles of the Dominion War|
|Second Battle of Deep Space 9 (2373) | Battle of Torros III (2373) | Battle of Rumarda (2374) | Battle of Tyra (2374) | Operation Blue Room (2374) | First Battle of Vulcanis (2374) | Operation Return (2374) | Raid on Coridan (2374) | Kalandra Offensive (2374) | Battle of Betazed (2374) | Second Battle of Vulcanis (2374) | Battle of Benzar (2374) | Battle of Sybaron (2374) | Liberation of Benzar (2374) | Battle of the Tibor Nebula (2374) | Raid on Tohvun (2374) | Third Battle of Vulcanis (2374) | First Battle of Chin'toka (2374) | Battle of Ricktor Prime (2375) | Battle of Chudala (2375) | Kalandra Campaign (2375) | Invasion of Septimus III (2375) | Breen attack on Earth (2375) | Second Battle of Chin'toka (2375) | Battle of the Three Suns (2375) | Liberation of Betazed (2375) | Battle of Getha (2375) | Battle of Cardassia (2375)|