off topic alert, off topic alert, let's not turn this into a dictionary exercise. The proposal originally was to enforce learning arabic for those who work here, but let's find out what could be the motives:
1. Improve productivity
2. Enhance social life
3. Provide better service to the arabic speakers
4. Appreciate the arabic culture
5. Lessening the cultural threat to host country

Macro, add more please and list in priority as you see fit