Simplify the following text for a Grade 9 native English-speaking person.
Original: Ù Ù Ø Ø Ù Ø Ø Ø Ù Ø Ø Ù Ø Ø Ù Ø Ù Ø ( transliterated as `` al-Mamlaka al - Ê '' Arabiyya as-Su Ê '' Å `` diyya '' ) by royal decree on 23 September 1932 by its founder , King Abdul Aziz Al Saud .
Simplified: Ù Ù Ø Ø Ù Ø Ø Ø Ù Ø Ø Ù Ø Ø Ù Ø Ù Ø , al-Mamlaka al - Ê '' Arabiyya as-Sa Ê '' Å `` diyya ) is mostly sunni Muslim country in the Middle East .