A series of military general orders prohibiting alcohol, war souvenirs, pornography, pets, satellite TV, wireless internet, Blogs, fraternization with opposite sex in war zones. Sort of like WW2s Catch-22. It means you can get in trouble for just about any non-military activity. Thanks Vietnam!
"dude... look at this Hustler, cute kitten, haji pistol, bottle of JD"
"put it away you stupid fuck before we get in more trouble"