Simplify the following text for a Grade 9 native English-speaking person.
Original: Pakistan Air Force ( PAF ) ( Urdu : Ù 3\/4 Ø Ú Ù Ø Ø Ø Û Û , Pak Fiza ` ya ) is the air arm of the Pakistani Armed Forces and is primarily tasked with the aerial defense of Pakistan with a secondary role to provide air support to the Pakistan Army and the Pakistan Navy .
Simplified: Pakistan Air Force ( Urdu : Ù 3\/4 Ø Ú Ù Ø Ø Ø Û Û , Pak Faza ` ya ) ( PAF ) is the Aviation branch of the Pakistan armed forces and is responsible for defending Pakistani air-space from intrusions . It also provides air support for ground troops .