Western Sahara and Morocco
Moroccans consider the disputed area, Western Sahara, as Moroccan Sahara. Everybody else calls it Western Sahara. So you wouldn't want to, say, call it Western Sahara while you're down there; they'll get a little bit upset about it. The Moroccan military members are very proud of their military service and what they've accomplished, and the fact that they do occupy and consider that Western Sahara part of Morocco. And so calling it Western Sahara is a bit of an insult to them.
In this video, a member of the U.S. Air Force discusses the delicate issue of Western Sahara in Morocco.