1. Desire for self-governance in Western Sahara

2. Chemical compound used in fertilizers

3. Total number of people in a given area

4. Struggle between opposing forces

4. Principal city serving as a seat of government

5. Former colonial power in Western Sahara

6. Region governed by a foreign power

7. Expression of objection or disapproval

8. Fertile area in a desert with vegetation and water

9. International organization promoting peace

10. Wealth in the form of natural assets

11. Country bordering Western Sahara to the east

12. Ability to govern oneself

13. Controlled by another country or force

14. Dominant geographical feature of the region

15. Hills of sand formed by wind or water

16. Subject of conflicting claims or arguments