It's a bit risque to apply the concept of "war crimes" or "rules of war" to Star Trek. Such things have been very circumstances-dependent in Earth history, and are in constant flux even today; Trek presents an all-new set of challenges, including various types of truly inhuman opponents, and this almost inevitably would result in rewriting of rules.
Let's also remember that the rules, laws and agreements that govern war (or try to) exist principally to allow wars to be fought. They facilitate conflict, making it easier to kill, enslave, draft, rob, deport and coerce. They do so by striking a balance between the conflicting needs of the side that wants to have war and the side that doesn't want war to be had on him - which typically are the same side, explaining why it's so easy to come to an agreement.
Yet while humans typically have the balance down pat, for any given period of history, enter nonhumans (or fanatics) and everything changes... Should Starfleet, say, believe in humane treatment of war prisoners when the Klingon philosophy establishes that such treatment is the worst sort of torture and the grossest war-perpetuating insult imaginable?
Timo Saloniemi
Let's also remember that the rules, laws and agreements that govern war (or try to) exist principally to allow wars to be fought. They facilitate conflict, making it easier to kill, enslave, draft, rob, deport and coerce. They do so by striking a balance between the conflicting needs of the side that wants to have war and the side that doesn't want war to be had on him - which typically are the same side, explaining why it's so easy to come to an agreement.
Yet while humans typically have the balance down pat, for any given period of history, enter nonhumans (or fanatics) and everything changes... Should Starfleet, say, believe in humane treatment of war prisoners when the Klingon philosophy establishes that such treatment is the worst sort of torture and the grossest war-perpetuating insult imaginable?
Timo Saloniemi