Book 4 of 4 in a mini-series entitled The Dominion War. A novelization of the Season 6 Episodes 5&6 in the television series Star Trek: Deep Space Nine.
"Learning of thousands of Dominion reinforcements gathering in the Gamma Quadrant, Sisko initiates a plan to retake Deep Space Nine and secure the wormhole before the minefield is detonated. Sisko commands the Defiant and 600 Federation ships against a Dominion/Cardassian armada to retake Deep Space Nine. Damar has Kira, Jake, and Leeta arrested."
Note: Elim Garak plays a major role.