From the blog of a reservist currently in Iraq:
Every contract on at least one of the Uber-Bases, since April 2006, has a “No Sex Slavery” section. This is actually required (Maybe as a late reponse to DynCorp abuses in other theatres, or more likely because of a different scandal that never hit the press). And it is not just a ‘Dude, I totally promise I won’t buy a sex slave while I am here’ but more than a page devoted to combating all the various loopholes by which one could acquire a sex slave under contract.
Follow the link to read the full boilerplate.