Oh, you're just not considering all the recourse extraction and juicy private contracts. It's not a matter of 'doves' giving up. The market-metabolism of empire necessitates moving on to fresh targets. The social organism we call the United States depends on maximizing entropy abroad. Let fly the depleted-uranium bullets in Europe!
i gave them something with a tad more explanatory capacity, lets see if they have more of a response then downvoting...
Give a liberal a liberal from another state to compete against and watch them turn into Lord Gerald Nigelhouse, Baron of Headington and Her Majesty's Royal Advisor on the Empire.
And if the others do not see themselves as liberals? Good. You now have a civilization vs barbarism argument on your hands, using morality to justify war.