"That one I'll keep to myself," Jadzia replied. She took a seat and smiled, like she was the kind of person that spent a lot of time smiling. "Since he timelines have diverged, I have no problem talking about the ships at least. One self-destruct to avoid capture, a second lost in the outer reaches of space, a third destroyed defending a Klingon colony from Romulans. Thanks to that sacrifice, it kickstarted decades of friendship between us and the Klingon Empire. My husband served on the second most recent, lost to a sneak attack while trying to save a solar system from destruction. The E was still intact when I was brought here."
And the predecessor to this version of the A had been lost too. Also to a sneak attack.