Dear [insert nation name here],
It’s that time of year again. Another World Conference meeting will be held one week from now and your attendance is mandatory. Like in previous meetings, you will be representing your country in front of the rest of the world, so come prepared. We ask all attendees of the conference to arrive a day in advance so they are prepared and well rested for their busy days ahead of them.
Enclosed is a map of the place where the meeting will be held. Please don't bring any unnecessary guests or you will be asked to leave the premises, which we of course don't want.
Sincerely,
The World Conference Team
[Enclosed on a separate page is an address and a map of the location]