They merely expect treachery from their commanders. It's probably why most of the grunts don't aspire to be commanders, it's far more dangerous than the battlefield.
Military politics these days... shame, shame...
wow, a command structure so based around treachery that the soldiers will actually defer to lower ranking commanders because they figure they'll kill the higher ranking ones. I guess thats why Ridley and Kraid are so big, they can simply eat any pirates that are disloyal.
AGAIN he says that so casually...reminds me of the hierarchy of the Unseen University before Ridicully became the head of the school in the earlier Discworld novels.