avearia
Alberic of Krufton
It's not Racist or anything to mow down legions of enemy mooks who happen to be Not White -- your MC is a Good Guy and the Hero, and also Not Racist, so this is totally okay. Most of the time said mooks aren't even human, so they don't actually matter.
Mooks are non-sentient, of course. why would someone with even half a brain willingly work for the bad guy?
That's right. Everyone is willingly and loyally working for the evil invading bad guys.
It couldn't possibly be true that they would mutiny as soon as they saw a feasible way to do so.
It also couldn't be possible that they WON'T mutiny because they expect your little five-man band of heroes isn't going to stop the bad guy, and expect to see a lot of bad things come from leaving their usual post. Nope, the guy who's got a family of fifteen at home who could be killed if he messes up an order is just going to drop everything and follow your teenagers around if he knows what's right.
It isn't sacrifice so much as completely forgetting about his family, by the way.
But more to the point:
Outright slaughter of the evil nation's army is definitely the best decision.
((I went to see the Last Airbender movie and actually felt a little sick when they were running around killing the fire nation troops. Especially when they almost dropped the ocean on them. =/ War is bad. I must be a total hippie or something. Oh wait, I already knew that about myself...))