By the way, how dare thee question the Duke's awesome commander capabilities? I would pulverize any opposing armies, no matter how large and powerful they maybe, in the exact same fashion of Haruhi-sama's obliteration campaign against the Computer Society! All Hail Haruhiism Inspired Arrogance! I am able to possess such confidence thanks to the fact that I was recently infected with a pesky confidence inspiring disease known as Arrogance Inspired Deterioration of Sanity or short for AIDS.
All Hail Haruhiism
Disclaimer: The Duke's screws are currently loose right now. All his words are to be treated as a grain of salt.
Dunno. Generally, I'd flip a coin. Heads = non discriminate eradication campaign against both. Tails = Lending my support to one of the armies. Then I would toss a coin again in order to determine which army is the lucky winner of the Duke's cheesy assistance.