Reading the previous posts, I fear that you might find things could fall rather flat, given the audience you have indicated.
Perhaps rather than try to do the Army down, you might score the odd brownie point by praising them up with a joke in which they come off best, rather than end up sucking the RAF 'hind tit' so the speak.
I shall adopt an army staff college story for your consideration and post it later.
Old Duffer