Extreme example, but imagine someone hires mercenaries to raid your village. The mercenaries have no personal animosity towards you, and no authority to alter their assignment. Is it therefore wrong for you to kill the mercenaries? I’m inclined to say they signed up for it.
They signed up for it but it is still wrong to kill them. Capture, or knock out to unconsciousness, is an option less permanent and looking better overall—unless it hinders your defence chances significantly; after all, you should continue caring for your goals.
They signed up for it but it is still wrong to kill them. Capture, or knock out to unconsciousness, is an option less permanent and looking better overall—unless it hinders your defence chances significantly; after all, you should continue caring for your goals.