 Earlier drafts of the script called for the USS Defiant to be  destroyed in the battle with the Borg, but screenwriter  Ronald D. Moore (qv) objected to the needless destruction of the  ship from _"Star Trek: Deep Space Nine" (1993)_ (qv) in a story that  didnt even involve the DS9 characters (apart from Lt. Commander  Worf). It would also prove to be inconvenient for the television  show, so the Defiant was eventually allowed to survive the battle.