[PvK]

The one ship you lost in the Last battle was one of:
1) Your most experienced one.
2) Your repair ship.
3) The stellar manipulation ship the rest of your fleet was there to protect.
4) The minesweeper that would have saved your fleet from the minefield it entered after the battle, and was annihilated.
5) Your troop transport, causing your fleet to wipe out your own defenseless population on the planet you were trying to re-capture.

PvK