Loose Lips Sink Ships
It is indeed fortunate that no members of the Taliban have access to the internet, a television showing BBC news or any forms of printed newspaper, because otherwise they might have found out about Operation Moshtarak well in advance giving them time to vanish into the hills and leave behind vast quantities of booby traps, oh, hang on....
Can you imagine this sort of operational advertising happening in earlier wars ?
"In the London Times today, D-Day ! How next week's big event will affect the Nazis."