The creation of the USS Defiant was a pivotal moment in DS9 ... Unprepared for the Dominion's brutal footsoldiers, the USS Odyssey was destroyed with all hands. As the USS Odyssey was a Galaxy ...

The Constitution Class USS Defiant was nearly identical to Enterprise ... under the command of Commodore Matt Decker (William Windom), was destroyed by a planet-killer doomsday machine robot.