Kira: This war's over. You lost.
Female Shapeshifter: Have I? I think you will find that neither the Jem'Hadar, nor the Breen would agree with that assessment - they will fight to the last man.
Kira: And what would that accomplish?
Female Shapeshifter: Isn't it obvious? You may win this war, Commander, but when it is over I assure you that you will have lost so many ships - so many lives - that your victory will taste as bitter as defeat.