The subtext is we should have stayed out of Afghanistan, too. 

In addressing the issue of the U.S. role as both world policeman and a credible force for good, Carnahan's screenplay thus takes three clearly defined avenues of approach: the practical (Rodriguez-Finch), the political (Irving-Roth) and the philosophical (Malley-Hayes). All three avenues, however, lead nowhere in particular. The first moves from the gung-ho through military bungling to personal, useless sacrifice; the second through point-by-point confrontation to ultimate resignation; and the third ends vaguely, with only a glimmer of hope.