North african south west asian realm

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Across
  1. 5. What is the common religion in this realm?
  2. 6. What political system is commonly used within the countries in this real (hint: right wing)
  3. 11. What was one of the first civilizations founded in this realm?
  4. 12. What is the wealthiest oil state in this realm?
Down
  1. 1. What is one of the biggest population issues present in this realm?
  2. 2. What caused the division of multiple tribes in this realm?
  3. 3. What is the main push factor of this realm?
  4. 4. What is the biggest economical asset of this realm?
  5. 7. Which empire grouped all of the countries in this realm together?
  6. 8. Which country was controversially invaded in 2003
  7. 9. what is the one country in this realm is culturally different from the rest?
  8. 10. What natural aspect led to people settling in this real?