Simplify the following text for a Grade 11 native English-speaking person.
Original: By religious affiliation , most Palestinians are Muslim , particularly of the Sunni branch of Islam , and there is a significant Palestinian Christian minority of various Christian denominations in the Palestinian territories . However , the majority of Palestinian Christians are found outside of Palestine .
Simplified: The Palestinian people or just Palestinians are the Arab people from the West Bank and the Gaza strip , which are also called the Palestinian Territories , or Palestine .