POLISARIO--What the acronym means

I've known about the Polisario Front since I learned about the Western Sahara. They're the sometimes militant, sometimes political group that represents the Saharawis. I just thought the name was Spanish or a transliteration of an Arabic word, but actually, POLISARIO is an acronym.

At the Speak for Sahrawis luncheon (someday, that post will be finished) I sat next to Bachir Edkhil, who claimed to have come up with the acronym. Before Morocco and Mauritania invaded, Western Sahara was divided into two portions, Saguía el Hamra and Rio de Oro.

Combining the first few words of the territories, as well as popular and liberation, POLISARIO (POpular de LIberacion de SAguia el hamra y RIo de Oro)